The Open CMO Role Is a Decision, Not Just a Vacancy

An open CMO role is one of the most consequential decisions a business can make, and most companies treat it like a hiring problem when it is actually a strategic one. The question is not simply who to appoint. It is what you need marketing to do, how much authority you are prepared to give, and whether the conditions exist for that person to succeed.

Get those questions wrong before the search begins and the appointment will fail regardless of how strong the candidate looks on paper.

Why the Vacancy Itself Deserves More Attention Than It Gets

When a CMO leaves, most businesses move quickly to fill the seat. That instinct is understandable. Marketing does not stop when the leadership does, and the absence of a senior owner creates real operational friction. But the rush to replace is often where the strategic mistake happens.

I have seen this play out from both sides. In agency work, you develop a sharp sense of what is happening inside a client’s marketing function just from the quality of the briefs you receive and the speed of decision-making. When a CMO exits and the business goes into replacement mode without pausing, the briefs get worse, the stakeholders multiply, and the agency ends up managing five different opinions about what marketing is supposed to be doing. The vacancy creates a power vacuum, and everyone fills it differently.

The smarter approach is to treat the gap as a diagnostic window. Why did the previous CMO leave? What did they inherit, and what did they build? Where did the function make genuine commercial progress, and where did it stall? These questions are not about assigning blame. They are about understanding the actual conditions you are hiring someone into.

What the Previous CMO’s Exit Actually Tells You

Exit reasons matter more than most boards acknowledge. There is a meaningful difference between a CMO who left because they were headhunted for a better opportunity, one who left because they were pushed out after missing targets, and one who left because the role was structurally impossible to succeed in. Each scenario implies a different next step.

If the role itself was broken, appointing a new person into the same structure will produce the same result. The average CMO tenure has been short across the industry for years, and a meaningful portion of those short tenures are not about individual performance. They are about misalignment between what the role was sold as and what it actually is. Boards that do not interrogate this are setting up their next appointment to fail before the search brief is even written.

This is part of a broader conversation about marketing leadership that I cover across the Career and Leadership in Marketing hub, including the structural reasons CMO tenures stay short and what businesses can do about it at a governance level.

When I was building out the agency’s senior team during a period of rapid growth, I made a point of understanding why good people had left previous roles before I hired them. Not to judge the previous employer, but because it told me what conditions they needed to thrive. The same logic applies in reverse when you are the one hiring into a leadership vacancy.

Defining the Mandate Before You Write the Job Description

One of the most common mistakes in CMO hiring is writing a job description before the mandate is clear. The job description is a communication tool. The mandate is the actual brief. They are not the same thing, and conflating them produces a search that attracts the wrong candidates and sets ambiguous expectations from day one.

The mandate should answer a small number of hard questions. What is marketing expected to deliver commercially in the next 12 to 36 months? What is the budget envelope, and is it fixed or is there a case to be made for growth? Who does the CMO report to, and how much direct access do they have to the CEO and board? What does marketing own, and what sits elsewhere, whether that is product, digital, or customer experience?

That last question is particularly important. The CMO remit has expanded significantly in many organisations over the past decade, absorbing digital, data, and increasingly customer success. In others, it has been deliberately narrowed. Neither is inherently right. But a candidate who expects to own the full customer lifecycle will not thrive in a business where product and technology sit in a separate silo with no shared governance. Being clear about that before the search begins saves everyone time.

The mandate should also be honest about what the function currently looks like. If the team is under-resourced, say so. If the tech stack is a mess, say so. If the previous CMO spent 18 months fighting for budget and lost, that context matters. A strong CMO candidate will find out eventually. Better they hear it from you in the process than discover it in month three.

Interim, Fractional, or Full-Time: Choosing the Right Model

Not every open CMO role needs a full-time permanent appointment. The right model depends on the business stage, the urgency of the commercial need, and the complexity of what needs to be done.

An interim CMO makes sense when there is genuine operational continuity to maintain and the business needs experienced leadership while the permanent search runs. A good interim will keep the function moving, manage the team through uncertainty, and ideally leave a cleaner brief for whoever comes in permanently. The risk is that interims sometimes become de facto permanent appointments by default, which creates its own set of complications.

A fractional CMO is a different proposition. It works well for businesses that need senior strategic input but cannot justify or do not yet need a full-time executive salary. Early-stage businesses, companies going through a defined transformation, and organisations with a strong operational marketing team but a gap at the strategic level are all reasonable candidates for the fractional model. The limitation is bandwidth. A fractional CMO is not available in the way a full-time leader is, and businesses that need someone embedded in the day-to-day will find the model frustrating.

The full-time permanent appointment remains the right answer for most mid-size and enterprise businesses with a complex marketing function, multiple channels, and a significant budget to manage. But even then, the timing matters. Appointing a permanent CMO before the mandate is clear, the budget is confirmed, or the team structure is resolved is setting up a difficult first year.

What the Search Process Should Actually Test For

CMO hiring processes tend to over-index on category experience and under-index on commercial judgment. The instinct to hire someone who has done the same job in the same sector is understandable, but it is not always the right call. Marketing problems are rarely unique to a single industry. The underlying dynamics of brand positioning, demand generation, customer retention, and measurement are largely transferable. What matters more is whether the candidate can think clearly under commercial pressure and build trust with a CEO and board who may not speak marketing fluently.

When I was growing the agency and hiring senior people, the candidates who impressed me most were not the ones with the most impressive client lists. They were the ones who could explain why something had not worked and what they had learned from it. That kind of candour is harder to perform than competence, and it is a much better signal of how someone will operate when things get difficult.

The search process should also test for fit with the specific operating environment. A CMO who has spent their career in large, well-resourced corporate functions will find a scrappier, resource-constrained environment genuinely difficult, not because they lack ability, but because the context requires a different set of behaviours. The reverse is also true. Someone who has built marketing functions from scratch may struggle in a highly matrixed enterprise where influence and alignment matter more than execution speed.

References matter more in CMO hiring than in most other executive searches because the role is so dependent on relationships. How did this person manage up? How did they manage the board relationship? What was their relationship with the CFO like? These are the questions that tell you how the appointment will actually play out.

The First 90 Days: Setting the Conditions for Success

Even the best CMO appointment can be undermined by a poor onboarding structure. The first 90 days are where the relationship between the CMO and the business gets established, and the signals sent in that window matter disproportionately.

The incoming CMO needs access to the right people quickly. That means the CEO, the CFO, and the heads of the key commercial functions. It also means honest access to the data. A CMO who spends their first month being fed curated reports and sanitised briefings will take much longer to develop an accurate picture of what is actually happening in the business.

There is a useful parallel in how good agencies approach a new client relationship. The first thing any competent agency does is try to understand the actual commercial situation, not the version the marketing team has been presenting internally. That means looking at the real numbers, understanding the sales cycle, and getting close enough to the customer to form an independent view. A new CMO needs to do the same thing, and the business needs to facilitate it rather than manage the narrative.

It is also worth being explicit about what success looks like in year one. Not in vague terms, but in specific commercial and operational terms. What does the CMO need to deliver to be considered a success at the 12-month mark? What decisions do they own, and which ones require board sign-off? These conversations are uncomfortable to have upfront, but they are far less uncomfortable than having them after 12 months of misaligned expectations.

Budget and Resource: The Conversation That Happens Too Late

Marketing budget conversations in CMO hiring are often deferred until after the appointment, which is a mistake. A CMO who accepts a role without a clear picture of the budget envelope they are working with is taking on significant risk. A business that appoints a CMO without having committed to a realistic resource level is setting up a conflict that will surface within months.

The budget conversation should happen as part of the mandate-setting process, before the search brief goes out. It does not need to be a final number, but there should be a realistic range and a shared understanding of how the CMO can make the case for additional investment if the commercial case warrants it.

I have watched this dynamic play out in client relationships many times. The agency gets appointed, the brief is ambitious, and then the budget conversation reveals that the resources available are a fraction of what the brief implies. The CMO is caught in the middle, managing upward expectations against a constrained reality. It is a structural problem, not a performance problem, but it gets attributed to the CMO.

For businesses thinking carefully about how they structure and resource marketing leadership, the Career and Leadership in Marketing hub covers the full range of these questions, from how CMOs can build commercial credibility to what boards can do to make the role more sustainable.

When the Open CMO Role Is a Signal, Not Just a Gap

Sometimes an open CMO role is a symptom of something deeper. If the business has had three CMOs in five years, the problem is not the candidates. It is the conditions. Boards that treat serial CMO turnover as a talent problem rather than a structural one will keep making the same appointment into the same broken context and wondering why the results do not change.

The structural questions worth asking include: Does the CEO genuinely believe in marketing as a commercial function, or do they see it as a cost centre that needs managing? Does the board have enough marketing literacy to evaluate what good looks like, or do they default to revenue attribution as the only metric that counts? Is the marketing function genuinely integrated with sales and product, or does it operate as a separate discipline with limited commercial accountability?

None of these are easy questions to answer honestly from the inside. But they are the questions that determine whether the next CMO appointment will succeed or become another data point in a pattern that nobody wants to acknowledge.

The businesses that get CMO hiring right are not necessarily the ones with the most sophisticated processes. They are the ones that are honest about what the role is, what the conditions are, and what they are prepared to invest, in budget, in time, and in the kind of executive relationship that makes senior marketing leadership possible. That clarity, more than any search methodology, is what determines whether the appointment sticks.

About the Author

Keith Lacy is a marketing strategist and former agency CEO with 20+ years of experience across agency leadership, performance marketing, and commercial strategy. He writes The Marketing Juice to cut through the noise and share what works.

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