Sales vs Marketing vs Business Development: What Is the Difference?

S03 • SALES FOUNDATION

Marketing, business development and sales all contribute to revenue, but they do different commercial jobs. Marketing primarily creates and shapes demand. Business development creates strategic routes to opportunity - through markets, relationships, channels or partnerships. Sales converts specific qualified opportunities into commercial commitments.

The confusion begins because real companies rarely organise these activities perfectly.

A founder may do all three. A “Business Development Manager” may actually be a salesperson. A marketing team may run account-based programmes that look remarkably similar to sales. A salesperson may open a new distribution channel, which sounds like business development. A key-account manager may both sell and manage an existing relationship.

So the useful question is not: “Which job title owns this?” It is: “What commercial job is actually being done?”

That distinction matters because businesses frequently diagnose revenue problems incorrectly when these functions are blurred.

If sales are weak, management may ask marketing for more leads. If leads are plentiful but conversion is weak, the problem may sit in sales. If the company needs entry into an entirely new market, neither another advertising campaign nor another salesperson may be sufficient. The constraint may be a distributor, alliance, regulatory route, ecosystem relationship or market-entry strategy - in other words, business development.

The functions overlap. They are not interchangeable.

What is the simplest difference between marketing, business development and sales?

A useful foundation is:

Marketing

Creates awareness, relevance, preference and demand in a market.

Business Development

Creates strategic access to new opportunities, relationships, channels, partnerships or markets.

Sales

Converts suitable individual opportunities into customers and commercial commitments.

Account Management

Develops the commercial relationship after the initial sale through retention, renewal, expansion and coordination.

In simplified form:

Market understanding → Marketing creates and shapes demand → Business Development creates routes to opportunity → Sales converts qualified opportunities → Operations delivers the promise → Account Management develops the relationship → Finance measures the economics

Real life is less tidy.

Marketing may continue influencing the buyer throughout the sales process. Business development may directly negotiate commercial agreements. Salespeople may prospect and therefore create opportunities rather than merely convert them. Account managers may sell additional services.

That is normal.

The model describes primary commercial purpose, not rigid departmental territory.

Why are these functions so often confused?

Because the boundaries differ from company to company.

Academic research confirms that there is no single universal configuration of marketing and sales. Homburg, Jensen and Krohmer studied 337 European companies across industries and identified multiple distinct configurations of the marketing-sales interface. Their research found substantial variation in the relative roles, structures, information sharing, orientations and power of marketing and sales units.

Source: https://journals.sagepub.com/doi/pdf/10.1509/jmkg.72.2.133

In practical terms, two companies can use the same title for very different work.

At Company A: Business Development Manager = salesperson.

At Company B: Business Development Manager = strategic partnerships.

At Company C: Business Development Manager = international market expansion.

At Company D: Business Development Manager = channel sales.

The title tells you less than the activity.

That is why Fiease should define these functions by the commercial problem they solve.

What problem does marketing solve?

Marketing solves a market-level problem:

How do the right customers become aware of us, understand our relevance, prefer our offer and enter a buying process?

Marketing can include market research, customer research, segmentation, ideal-customer definition, positioning, brand, pricing strategy, product marketing, content, communications, advertising, events, digital demand generation, channel strategy, customer insight and measurement of acquisition economics.

Lead generation is therefore only one part of marketing.

A company can have strong marketing without generating thousands of form submissions.

For example, an industrial equipment manufacturer may use marketing to identify attractive industries, understand why customers replace existing machinery, develop a clear position around uptime rather than lowest purchase price, publish technical comparison material, participate in relevant exhibitions, build OEM awareness and create technical content used by purchasing and engineering teams.

Those activities shape the market before a sales conversation ever starts.

Is advertising the same thing as marketing?

No.

Advertising is one possible marketing activity. Marketing is broader.

If management asks: Who should we serve? What problem should we solve? How should the offer be positioned? What should it cost? How should customers discover it? Which channels should we use? What should customers believe about us? How should demand be created? - those are marketing questions.

Advertising addresses only part of that system.

What problem does sales solve?

Sales solves an opportunity-level problem:

How do we determine whether a specific potential customer should buy, whether we are the right supplier, and how do we move that opportunity toward a commercial decision?

Sales typically includes some combination of prospecting, initial contact, qualification, discovery, solution discussion, demonstration, stakeholder management, commercial proposal, objection diagnosis, negotiation, closing and handoff.

The important distinction is the unit of analysis.

Marketing often asks: “What does this customer segment need?”

Sales asks: “What does this particular organisation need, and can we create a viable transaction?”

Marketing sees patterns. Sales sees individual cases. A good company needs both.

Does sales only start when marketing gives it a lead?

No.

Sales can create its own opportunities through outbound prospecting, referrals, personal networks, existing-account relationships, trade exhibitions, channel relationships, direct outreach and account-based selling.

That is why the statement “Marketing generates leads and sales closes them” is useful only as a beginner-level simplification.

In many B2B organisations, sales contributes materially to opportunity creation.

The deeper distinction remains: Marketing primarily creates market-level demand and preference. Sales primarily manages specific potential transactions.

What problem does business development solve?

Business development addresses a more strategic question:

What commercial opportunities could exist if the company created new access, relationships, routes to market, capabilities or partnerships?

This can include new geographic markets, distribution partnerships, technology alliances, OEM relationships, institutional partnerships, joint ventures, referral ecosystems, strategic accounts, licensing, channel development, industry relationships and other routes to commercial access.

McKinsey notes that companies use partnerships to obtain complementary capabilities, enter new markets and channels, share intellectual property or infrastructure, and reduce risk.

Source: https://www.mckinsey.com/capabilities/strategy-and-corporate-finance/our-insights/improving-the-management-of-complex-business-partnerships

Those activities are commercially important. But they are different from selling a specific customer a specific solution today.

Can you give a simple example?

Consider an Indian automotive-components manufacturer.

Marketing might ask:

Which EV-component categories offer attractive demand? Which OEM and Tier-1 segments should we target? How should we position ourselves? What technical content should we publish? Which exhibitions should we attend? What should our brand stand for?

Business Development might ask:

Can we develop a relationship with a major EV OEM? Should we appoint a distributor in Europe? Can we form a technology partnership? Can we become an approved supplier through an industry ecosystem? Can we create a channel relationship with a complementary manufacturer?

Sales might ask:

Does this specific OEM have a requirement? What are the specifications? What volumes are expected? Who influences the decision? Can we meet the quality and delivery requirements? What commercial proposal makes sense? Can we win the purchase order profitably?

Same company. Same revenue objective. Different commercial jobs.

What is the difference between business development and sales?

Dimension	Business Development	Sales
Primary purpose	Create strategic opportunity or access	Convert specific opportunity
Typical unit	Market, partner, channel, strategic account	Deal, buyer, opportunity
Typical time horizon	Often medium to long term	Usually tied to active sales cycle
Core question	What route to growth can we create?	Can this customer buy from us?
Typical output	Partnership, channel, access, strategic opportunity	Order, contract, commercial commitment
Relationship type	Often ecosystem or strategic relationship	Buyer-seller relationship
Measurement	Opportunity creation, channel value, partnership progress	Pipeline, revenue, margin, win rate

But there is no universal boundary.

A business-development executive negotiating a distribution agreement is also selling something. A salesperson opening a strategic market is doing business-development work.

The useful distinction is therefore functional, not bureaucratic.

Is business development just a more respectable name for sales?

In some organisations, yes.

Many companies use “business development” because it sounds broader or less transactional than “sales.” There is nothing inherently wrong with that.

But management should still know what the person is actually expected to accomplish.

If a Business Development Manager is responsible for finding prospects, calling them, holding discovery meetings, sending proposals, negotiating and closing orders, the role is substantially a sales role, regardless of title.

If the same person is responsible for finding distribution partners, building institutional relationships, entering new territories, developing strategic alliances and creating long-term access, the role is closer to strategic business development.

The name is secondary. The operating model matters.

What is account management, then?

Account management focuses primarily on the commercial relationship after an initial customer has been acquired.

It may include retention, renewal, cross-sell, upsell, commercial reviews, relationship management, issue escalation and identification of new customer needs.

Again, structures differ. Some salespeople retain the account. Some companies transfer customers to dedicated account managers. Some use customer-success teams. Some have key-account management for strategically important customers.

The key business question is: Who owns commercial development after acquisition?

If the answer is nobody, a company may work extremely hard to acquire customers and then leave future value unmanaged.

Where does customer success fit?

Customer success is most common in recurring-revenue businesses, particularly software and services.

Its primary goal is usually ensuring that customers obtain the expected value from the product or service, which supports adoption, retention, renewal and potentially expansion.

Account management and customer success can overlap heavily.

A useful distinction is:

Customer success: Are customers achieving value?

Account management: Is the commercial relationship being retained and developed?

In many organisations one team does both.

Where does sales development fit?

Sales Development Representatives - SDRs - or Business Development Representatives - BDRs - are often responsible for the earliest parts of opportunity creation.

Typical work includes prospecting, outreach, initial qualification, meeting generation and transferring suitable prospects to account executives or sales representatives.

This naming convention creates even more confusion because a “BDR” may actually be performing an early-stage sales function rather than strategic business development.

Again: title ≠ function.

What is the difference between lead generation and sales?

Lead generation creates potential commercial contacts or expressions of interest. Sales determines what those contacts mean and whether they can become customers.

Suppose marketing produces 1,000 enquiries.

That number does not tell management how many fit the target customer, how many can be contacted, how many have a real problem, how many have buying intent, how many can afford the solution, how many become opportunities or how many will buy.

A lead is an input. A sale is an outcome of a much larger process.

Who owns the ideal customer profile?

Not marketing alone.

Marketing can contribute market segmentation, demand patterns, competitive data and acquisition economics.

Sales can contribute who converts, which problems recur, where deals stall, which customers buy quickly and which decision-makers engage.

Operations can contribute which customers are easy or difficult to serve.

Finance can contribute which customers actually produce margin and cash.

Suppose two customer segments generate the same revenue.

Segment A: high discount, heavy customisation, slow payment, high complaint rate.

Segment B: standard delivery, healthy margin, 30-day payment, repeat business.

A marketing-only or sales-only ideal-customer definition may miss the economic distinction.

The real ideal customer sits at the intersection of:

market attractiveness + sales convertibility + operational fit + financial quality.

That is a Fiease view.

Who owns positioning?

Marketing should usually lead strategic positioning because positioning concerns how the offer should be understood in the market.

But sales provides critical evidence.

Marketing may decide the message is: “The most advanced platform in the market.”

Sales may repeatedly hear: “We don't need advanced. We need implementation we can actually manage.”

That feedback matters.

Positioning should therefore be market-led but reality-tested through customer conversations.

Who owns pricing?

Pricing is inherently cross-functional.

Marketing may understand willingness to pay, positioning, segment differences and competitive context.

Sales understands deal-level reactions, negotiation and customer trade-offs.

Finance understands margin, contribution, cash and profitability.

Operations understands cost-to-serve, capacity and customisation consequences.

If sales alone owns pricing, it may optimise conversion. If finance alone owns pricing, it may protect margin without understanding market response.

Pricing is where commercial strategy meets economics.

Who owns lead qualification?

Both marketing and sales must agree on the logic.

Marketing may decide when an inquiry appears sufficiently relevant to pass to sales. Sales determines whether deeper opportunity qualification is justified.

The mistake is allowing each team to define “qualified” independently.

Then marketing says: “We generated 400 qualified leads.”

Sales says: “Almost none were qualified.”

Both may be telling the truth according to different definitions. The problem is governance.

Why do marketing and sales fight?

Because they see different parts of reality.

Marketing often works with markets, segments, campaigns, aggregate behaviour and longer-term demand creation.

Sales works with individual customers, specific objections, current competitors, active opportunities and monthly or quarterly targets.

Each side can therefore believe the other does not understand the market.

Kotler, Rackham and Krishnaswamy documented this tension in their classic Harvard Business Review article *Ending the War Between Sales and Marketing*. They observed that sales teams often regard marketers as detached from actual customers, while marketing may view sales as excessively focused on individual experiences and short-term transactions.

Source: https://hbr.org/2006/07/ending-the-war-between-sales-and-marketing

The disagreement is partly structural.

Marketing sees the forest. Sales sees individual trees. A business needs both perspectives.

Is sales-marketing integration actually important?

Yes, although integration should not mean merging everything into one department.

Research distinguishes integration from simply communicating more frequently.

Rouziès and colleagues developed a framework treating sales-marketing integration as a deeper organisational issue involving coordinated activities and processes, while also recognising that integration creates costs and is more valuable under some conditions than others.

Source: https://www.tandfonline.com/doi/abs/10.1080/08853134.2005.10749053

Later research involving 196 sales and marketing managers found that gaps between the integration managers wanted and the integration they actually experienced were negatively related to firm performance. The same research found that reward systems focused solely on one function could widen the integration gap.

Source: https://www.tandfonline.com/doi/full/10.1080/08853134.2018.1513796

The management implication is not: “Sales and marketing must become one team.” It is: “They must coordinate wherever their decisions are interdependent.”

What should marketing know from sales?

Marketing should receive structured feedback on lead quality, customer problems, objections, competitor mentions, reasons for loss, content gaps, decision criteria, customer language, pricing reactions and segment quality.

Imagine sales repeatedly discovers that engineering managers ask: “How quickly can this be installed without stopping production?”

Marketing should know.

That question can shape website content, case studies, FAQs, sales tools and positioning.

Sales conversations are market research - but only if the information returns to the organisation.

What should sales know from marketing?

Sales should understand target segments, positioning, campaign activity, customer research, competitive insight, content resources, lead source and the promise made before the conversation began.

A prospect may arrive after reading three articles, a case study, an advertisement and a pricing page.

If the salesperson acts as if the customer knows nothing, the experience becomes disconnected.

Gartner describes B2B purchases as nonlinear buying work involving problem identification, solution exploration, requirements building, supplier selection, validation and consensus creation rather than a simple sequence controlled by the salesperson.

Source: https://www.gartner.com/en/sales/insights/b2b-buying-journey

Marketing and sales therefore influence the same buyer at different moments.

Has digital buying made sales less important?

It has changed what sales should contribute.

Recent Gartner research published in May 2026, based on 645 B2B buyers, found strong preferences for digital and self-directed buying. Yet 69% of respondents preferred to validate AI-generated insights with sales representatives. Buyers reported using an average of seven information sources during a recent purchase.

Source: https://www.gartner.com/en/newsroom/press-releases/2026-05-20-gartner-survey-finds-sixty-nine-percent-of-b-two-b-buyers-turn-to-sales-reps-to-validate-ai-generated-insights

This creates a powerful distinction.

If a salesperson merely repeats information already available online, their value declines.

If the salesperson helps the buyer interpret, validate, compare, diagnose, de-risk and make decisions, the human role remains valuable.

The future of B2B sales is therefore not simply more information. It is better decision support.

Where does business development become especially important?

Business development becomes more important when growth requires creating a new commercial route rather than simply increasing sales activity.

Examples: entering another country, building a distributor network, developing OEM relationships, forming a technology alliance, building an industry partnership, creating institutional access, working with referral partners or creating a new channel.

McKinsey's work on complex partnerships notes that companies increasingly form partnerships to access markets and channels, combine complementary capabilities and reduce risk.

These activities can create growth that ordinary lead generation cannot.

Does every business need dedicated marketing, sales and business-development teams?

No.

It needs the capabilities its growth model requires.

A local service company may have little need for a dedicated business-development function. An industrial manufacturer entering new geographies may need significant business-development capability. A technology company building an integration ecosystem may need partnerships as a core growth engine.

A small founder-led company may have the founder perform all three roles.

Design the function around the growth model. Do not create departments because other companies have them.

Where does RevOps fit?

Revenue Operations - RevOps - is an organisational approach designed to improve coordination, data, processes and technology across functions contributing to revenue.

It may span marketing operations, sales operations, customer success, analytics, systems and forecasting.

RevOps is not a replacement for marketing or sales. It is closer to an operating layer connecting them.

Its value is highest where fragmented systems and handoffs create revenue leakage.

What happens when marketing is strong but sales is weak?

Demand enters. Conversion leaks.

Symptoms might include high enquiry volume, slow response, poor qualification, weak discovery, stalled opportunities, low proposal conversion and unreliable pipeline data.

Marketing may keep generating more leads. Sales cannot absorb or convert them. Acquisition expenditure becomes increasingly inefficient.

What happens when sales is strong but marketing is weak?

Salespeople may still win. But they often rely heavily on personal networks, cold prospecting, relationships and individual reputation.

Growth becomes salesperson-dependent.

The organisation may lack brand visibility, market education, inbound demand, content or scalable demand generation.

Salespeople spend too much time creating awareness before they can sell.

What happens when business development is strong but execution is weak?

The company creates exciting opportunities that never become economic activity.

A strategic partnership is signed. Management announces it. But nobody defines target accounts, commercial ownership, lead flow, pricing, activation, sales training or KPIs.

The partnership exists. Revenue does not.

McKinsey's partnership research emphasises the importance of clear objectives, governance, communication and appropriate measures in successful partnerships.

Source: https://www.mckinsey.com/capabilities/strategy-and-corporate-finance/our-insights/partners-in-profit-creating-successful-business-alliances

A relationship is not a business model until the operating mechanism exists.

What happens when sales and operations are disconnected?

Sales wins promises operations cannot fulfil.

Examples: unrealistic delivery, unprofitable customisation, small order quantities, special service commitments or impossible implementation dates.

The customer experiences one company. They do not care that “sales promised it without asking operations.”

Commercial systems must therefore connect demand with delivery capacity.

What happens when sales and finance are disconnected?

Sales can produce revenue that looks attractive but creates weak economics.

For example: ₹1 crore order, 10% discount, 120-day credit, high customisation, low contribution, collection risk.

Sales celebrates ₹1 crore. Finance sees a very different transaction.

The correct question is not: “Did sales close?” It is: “What quality of revenue was created?”

What happens when marketing and finance are disconnected?

Marketing can optimise acquisition metrics without understanding customer economics.

Suppose:

Campaign A

Customer acquisition cost = ₹12,000.

Average customer contribution = ₹20,000.

Campaign B

Customer acquisition cost = ₹22,000.

Average customer contribution = ₹90,000.

If marketing evaluates only acquisition cost, Campaign A appears better.

When finance enters the picture, the conclusion may reverse.

Marketing performance ultimately becomes financial performance.

How should a small company organise all of this?

Do not begin with departments. Begin with responsibilities.

Market

Who decides whom we should serve?

Demand

Who creates awareness and interest?

Opportunity

Who identifies and develops promising commercial situations?

Conversion

Who qualifies, proposes and closes?

Delivery

Who owns implementation?

Relationship

Who retains and develops the customer?

Economics

Who measures margin, cash and customer value?

One person can own several responsibilities. But no responsibility should be invisible.

The Fiease Revenue Continuum

A practical Fiease model is:

Market understanding → Targeting and positioning → Demand creation → Opportunity creation → Qualification → Commercial conversion → Customer onboarding → Retention and expansion → Financial value

Different functions dominate different parts.

Commercial stage	Primary functional influence
Market understanding	Marketing + Strategy
Targeting/positioning	Marketing
Demand creation	Marketing
Strategic opportunity creation	Business Development
Qualification	Sales
Conversion	Sales
Delivery	Operations
Retention/expansion	Account Management / Customer Success
Margin and cash visibility	Finance

But information should move in both directions.

This is not a linear organisational chart. It is a commercial system map.

A hypothetical example: everyone was doing their job - and revenue was still weak

HYPOTHETICAL EXAMPLE

A ₹50 crore B2B manufacturer wants to grow into a new industrial segment.

Marketing launches Google campaigns, LinkedIn campaigns, technical content and exhibition activity. It generates 600 enquiries. Marketing reports success.

Sales contacts them and finds only 90 relevant. Sales reports poor lead quality.

Business development has separately been speaking with two major distributors but has not shared the relationships with marketing.

Operations says the product requires configuration for the target segment.

Finance says the smallest opportunities generated by the campaigns are economically unattractive.

Every department has a defensible complaint.

What is the real problem?

The commercial system was never designed jointly.

The company should have first answered: Which subsegment is economically attractive? What minimum customer profile makes delivery profitable? Is the best route direct sales or channel? What product configuration is required? What counts as a qualified lead? What type of demand should marketing create? What opportunities should distributors handle? Who owns follow-up?

Now the problem looks different.

It was not marketing failure or sales failure. It was a commercial architecture failure.

What should a CEO ask when sales and marketing blame each other?

Do not begin by deciding which department is right.

Ask: How many enquiries entered? Where did they come from? How many fit the target profile? How quickly were they contacted? How many became meaningful conversations? How many became opportunities? How many became proposals? How many became customers? What revenue and margin resulted? Why were deals lost? Which sources produced high-quality customers?

Now disagreement becomes measurable.

What should sales and marketing share?

At minimum: one target-customer definition, one terminology system, one handoff definition, one feedback loop, one view of funnel economics and shared visibility of customer learning.

They do not need identical KPIs. But the KPIs should connect.

Should sales and marketing have the same incentives?

Not necessarily. They control different things.

But isolated incentives can cause predictable dysfunction.

Research on the sales-marketing integration gap found that rewards focused solely on either sales or marketing were associated with wider perceived integration gaps.

That does not mean everyone should receive the same bonus. It means incentive design should not reward one function for creating problems another must absorb.

For example: Marketing rewarded only for lead volume may maximise volume. Sales rewarded only for booked revenue may maximise discounting. Neither metric alone guarantees profitable growth.

What should each function be measured on?

Marketing

Possible measures include target-market reach, qualified demand, cost of acquisition, content engagement, pipeline contribution, brand search, segment penetration and customer economics.

Business Development

Depending on strategy: qualified strategic opportunities, partnership activation, channel revenue, market-entry milestones, partner-generated pipeline, relationship progression or economic value created by alliances.

Sales

Potential measures include qualified pipeline, conversion, revenue, margin, sales-cycle length, forecast accuracy, discount, stage progression and collection quality where commercially relevant.

Account Management

Possible measures include renewal, retention, customer profitability, account expansion, relationship health, payment performance and customer outcomes.

No universal dashboard applies to every business. Measurement must follow the commercial job.

What are the most common misunderstandings?

“Marketing gives leads; sales closes.”

Sometimes. But it is too narrow as a definition.

“Business development is sales.”

Sometimes by title. Not necessarily by function.

“Marketing stops after the lead.”

No. Marketing can influence the entire buying process.

“Sales owns every customer conversation.”

No. Technical, service, operations and management teams may all participate.

“Account management is customer service.”

Not exactly. Account management has a commercial relationship mandate.

“A CRM connects sales and marketing automatically.”

Technology can enable coordination. It cannot create definitions or governance by itself.

“More integration is always better.”

Not necessarily. Integration creates coordination cost. It should be strongest where functions are materially interdependent.

So where should Fiease draw the boundaries?

Use primary responsibility, not absolute exclusivity.

Marketing

Who should want to talk to us, why should they care, and how do we create demand?

Business Development

What new route to commercial opportunity should we create?

Sales

Is this specific opportunity real, can we create value, and can we convert it into a sensible commercial commitment?

Account Management

How should the relationship develop after purchase?

That is simple enough for an SME owner. It is also accurate enough to support a serious operating model.

What is the final difference?

Marketing works primarily on the market.

Business development works primarily on strategic access and opportunity creation.

Sales works primarily on the individual commercial decision.

Account management works primarily on the continuing customer relationship.

All contribute to revenue. But revenue is not owned by one department.

The complete system is:

Marketing creates demand.

Business Development creates access.

Sales converts opportunity.

Operations fulfils the promise.

Account Management develops the relationship.

Finance reveals whether the growth created margin and cash.

That is the Fiease view.

The commercial problem may appear to belong to one function. The economic result belongs to the entire business.

Frequently asked questions

Is marketing more important than sales?

Neither is universally more important. The constraint depends on the business. A company without sufficient demand has a marketing problem. A company with strong demand and poor conversion may have a sales problem.

Is a Business Development Manager a salesperson?

Sometimes. Job titles vary widely. Evaluate the activities and commercial responsibility rather than the title.

Who should generate leads?

Marketing, outbound sales, business development, partners, referrals and existing customers can all generate opportunities depending on the business model.

Who should define a qualified lead?

Marketing and sales should agree on the definition. Sales may then apply deeper opportunity qualification.

Who should own the CRM?

Ownership may sit with sales operations or RevOps, but CRM design should support shared commercial processes and definitions.

Does marketing continue after a customer speaks with sales?

Yes. Buyers continue using websites, content, case studies, digital tools and other sources throughout the buying process.

What is the difference between sales and account management?

Sales usually focuses on winning the initial commercial commitment. Account management focuses on retaining and developing the relationship after acquisition.

What is the difference between business development and partnerships?

Partnership development can be one part of business development. Business development may also include new-market entry, channels, strategic accounts and other growth routes.

Can one person perform all three functions?

Yes, particularly in founder-led SMEs. The important requirement is recognising that the responsibilities are different even when the person is the same.

What is the simplest Fiease definition?

Marketing creates demand. Business development creates routes to opportunity. Sales converts qualified opportunities into customers.

Research foundation

This article draws on the sales-marketing integration literature, including Kotler, Rackham and Krishnaswamy's examination of organisational conflict; Homburg, Jensen and Krohmer's empirical taxonomy of marketing-sales configurations across 337 companies; Rouziès and colleagues' integration framework; later research on the sales-marketing integration gap; McKinsey research on partnerships; and current Gartner evidence on increasingly nonlinear, multi-source B2B buying.

Sources:

https://hbr.org/2006/07/ending-the-war-between-sales-and-marketing

https://journals.sagepub.com/doi/pdf/10.1509/jmkg.72.2.133

https://www.tandfonline.com/doi/abs/10.1080/08853134.2005.10749053

https://www.tandfonline.com/doi/full/10.1080/08853134.2018.1513796

https://www.mckinsey.com/capabilities/strategy-and-corporate-finance/our-insights/improving-the-management-of-complex-business-partnerships

https://www.gartner.com/en/sales/insights/b2b-buying-journey

https://www.gartner.com/en/newsroom/press-releases/2026-05-20-gartner-survey-finds-sixty-nine-percent-of-b-two-b-buyers-turn-to-sales-reps-to-validate-ai-generated-insights