What Separates a Good CMO From an Expensive One

A good CMO is someone who can hold commercial accountability and creative ambition at the same time, without letting either collapse into the other. They understand how the business makes money, they know how marketing contributes to that, and they can communicate both clearly to a board that often doesn’t want to hear about brand equity or channel mix.

That sounds straightforward. It rarely is.

After two decades running agencies, managing large marketing teams, and sitting across the table from CMOs at Fortune 500 companies and fast-growth challengers, I’ve seen what separates the ones who genuinely move the business from the ones who produce a lot of activity and not much else.

Why Most CMO Definitions Miss the Point

Most job descriptions for a CMO read like a wishlist. Brand strategy. Performance marketing. Data and analytics. Customer experience. Product marketing. Comms. Team leadership. Budget ownership. Board reporting. The list goes on until it stops resembling a human role and starts resembling a department.

That’s part of the problem. The CMO title has expanded to cover so much ground that the definition of success has become genuinely unclear. Are you being measured on brand awareness? Revenue growth? Customer acquisition cost? Market share? Pipeline contribution? Depending on who you ask, you’ll get a different answer, and often the CMO and CEO aren’t aligned on which one matters most.

I’ve worked with businesses where the CMO was producing beautifully crafted brand work that the sales team had no use for, and businesses where the CMO was so buried in performance dashboards that they’d lost sight of whether the brand meant anything at all. Neither extreme builds a durable business.

The CMOs who consistently deliver are the ones who’ve resolved that tension for themselves. They know which levers they’re pulling, why those levers matter commercially, and how to explain that to people who don’t think in marketing terms.

If you’re thinking about what strong marketing leadership looks like across different stages of a business, the broader Career and Leadership in Marketing hub is worth exploring. There’s a pattern to how good operators think, and it shows up consistently across roles and industries.

Commercial Fluency Is Non-Negotiable

The single biggest differentiator I’ve seen between CMOs who earn their seat at the table and those who don’t is commercial fluency. Not financial expertise in the technical sense, but the ability to think in business terms, not just marketing terms.

When I was running agencies, I spent a lot of time in rooms with senior marketers who were genuinely talented at their craft but struggled the moment the conversation shifted to margin, payback periods, or capital allocation. They’d retreat into brand language or channel jargon, and you could see the CFO or CEO mentally check out. That’s a credibility problem, and it compounds over time.

The CMOs who commanded real authority in those rooms could do something simple but rare: they could explain what the marketing investment was expected to return, over what timeframe, with what level of confidence, and what the assumptions were. They weren’t pretending to have perfect data. They were being honest about what they knew and what they were betting on.

That kind of transparency builds trust with a board faster than any polished deck. It also forces the CMO to actually think rigorously about the commercial logic of their decisions, rather than just presenting outputs and hoping the numbers hold up.

Commercial fluency also means understanding the business model well enough to know which marketing activities are genuinely accretive and which ones are theatre. A CMO who can’t distinguish between the two will always struggle to prioritise, and will always be vulnerable when budgets come under pressure.

The Measurement Problem Every CMO Faces

One of the things I’ve come to believe strongly, after years of managing significant ad spend across a wide range of industries, is that most marketing measurement is designed to make the marketing team look good rather than to tell the truth about what’s working.

Last-click attribution. Vanity metrics dressed up as KPIs. Brand tracking studies that show awareness going up while the business is going sideways. I’ve seen all of it, and I’ve been guilty of some of it myself earlier in my career.

The problem is that bad measurement doesn’t just mislead the board. It misleads the CMO. If you’re optimising against the wrong signals, you’ll make decisions that look defensible in a dashboard but don’t actually move the business. You’ll double down on channels that are capturing demand that would have arrived anyway, and you’ll underinvest in the work that’s actually building something.

Good CMOs build measurement frameworks that are honest about uncertainty. They acknowledge that some of the most valuable marketing activity, the kind that reaches people who aren’t already in the market, is the hardest to measure and the easiest to cut. They fight to protect it anyway, because they understand the long-term cost of not reaching new audiences.

This connects to something I’ve thought about a lot: the difference between capturing demand and creating it. Earlier in my career I overvalued lower-funnel performance marketing. It looked efficient because the numbers were clean. But a lot of what it was credited for was going to happen anyway. The people clicking on those ads had already decided to buy. The harder and more important question is how you reach the people who haven’t decided yet, and that’s where most businesses underinvest.

A good CMO understands that distinction and builds a portfolio of activity that addresses both. They don’t abandon performance marketing, but they don’t mistake it for growth either. Tools that help with data-driven decision making can support this kind of thinking, but the strategic clarity has to come from the CMO first.

Brand and Performance Are Not Opposing Forces

There’s a debate that resurfaces every few years about whether brand marketing or performance marketing is more important. It’s a largely pointless debate, and the CMOs who get stuck in it tend to be the ones who’ve spent their entire career on one side of the fence.

The reality is that brand and performance work together, and the relationship between them is more interesting than the debate suggests. Strong brand work reduces the cost of performance marketing over time, because it means more people are already predisposed to choose you when they do enter the market. Effective performance marketing funds the brand investment that makes the whole system work.

I judged the Effie Awards, which measure marketing effectiveness, and one thing that struck me was how consistently the work that performed best commercially was the work that had done both things well. It had reached people outside the immediate purchase window and converted people inside it. The idea that you have to choose is a false constraint, usually imposed by budget pressure or organisational silos, not by any real strategic logic.

A good CMO knows how to argue for the full picture. They don’t let the business optimise its way into a short-term trap by cutting everything that doesn’t have an immediate, measurable return. That’s one of the harder political battles in the role, and it requires the kind of commercial credibility I mentioned earlier. You can’t make that argument if you haven’t already earned the trust of the people who control the budget.

Understanding what drives high-intent behaviour versus broader audience engagement is genuinely useful here. Thinking beyond high-intent signals applies as much to marketing strategy as it does to search, and the underlying logic is the same: you can’t build a business by only talking to people who are already ready to buy.

Internal Leadership Is Where CMOs Succeed or Fail

Here’s something that doesn’t get talked about enough: the CMO role is fundamentally a cross-functional leadership role, and many people who are excellent marketers are not naturally strong cross-functional operators.

Marketing touches almost every part of the business. Product, sales, finance, customer service, technology. A CMO who can only operate within their own function will constantly find their work undermined by misalignment with other departments. The brief goes out, the campaign launches, and then the sales team says it’s not what customers are asking for, or the product team says the promise doesn’t match the reality, or finance says the budget allocation doesn’t reflect the priorities they agreed.

I grew one agency from 20 to 100 people and turned around a loss-making business during that period. The thing I learned most clearly from that experience is that growth is primarily an organisational challenge, not a marketing one. Getting people aligned, getting functions working together, getting the right information flowing to the right people, that’s where the work actually happens. Marketing strategy is the easy part compared to making a large organisation execute it consistently.

Good CMOs are operators. They build processes that work, they hire people who are better than them in specific areas, and they create clarity about what the team is trying to achieve and how success will be measured. They don’t just set direction and hope the organisation follows.

They’re also politically astute without being political in the pejorative sense. They understand how decisions get made in their organisation, who the real stakeholders are, and how to build coalitions around ideas that might otherwise get killed by inertia or competing priorities. That’s a skill that takes years to develop and is very hard to teach.

The Relationship With the CEO Defines Everything

The CMO’s relationship with the CEO is the single most important variable in whether the role succeeds. More important than budget, more important than team quality, more important than the state of the market.

If the CEO doesn’t understand marketing, doesn’t value it, or doesn’t trust the CMO’s judgement, the CMO will spend most of their time defending decisions rather than making them. Every campaign becomes a negotiation. Every budget request becomes a battle. The best talent on the team starts to leave because they can see that the work isn’t going to get made properly.

I’ve seen this dynamic up close from the agency side. When the CMO didn’t have the CEO’s confidence, the briefs were always compromised. There was always someone in the room who wasn’t the CMO who had a stronger view about what the creative should look like or what the messaging should say. The work that came out of those processes was rarely the work that moved the business.

Conversely, when the CMO had genuine authority and a CEO who understood the role of marketing, the work was faster, cleaner, and more effective. Not because the marketing was necessarily more sophisticated, but because the decisions were made by the right people and stuck once they were made.

A good CMO invests in that relationship deliberately. They don’t wait for the CEO to come to them. They proactively create shared understanding about what marketing is doing, why it matters commercially, and what the realistic expectations are. They treat the CEO as the most important internal stakeholder, because in most organisations, that’s exactly what they are.

What Good CMOs Actually Do Differently

Pulling this together into something concrete: the CMOs who consistently perform well tend to share a handful of habits that distinguish them from the ones who don’t.

They start with the commercial problem, not the marketing solution. When they’re briefing a campaign or a channel strategy, the starting point is always the business outcome they’re trying to achieve, not the marketing activity they want to run. This sounds obvious but it’s surprisingly rare in practice.

They’re honest about what they don’t know. Good CMOs don’t pretend to have certainty they don’t have. They distinguish between what the data shows, what they believe based on experience, and what they’re genuinely uncertain about. This builds credibility over time in a way that false confidence never does.

They protect the work that’s hardest to measure. They understand that the most valuable marketing activity is often the most difficult to attribute, and they don’t let short-term measurement pressure erode the investment in brand, reach, and long-term positioning. This requires both commercial credibility and genuine conviction, and it’s one of the harder things to sustain in an organisation that’s under revenue pressure.

They build teams that challenge them. The worst marketing teams I’ve seen are the ones where everyone agrees with the CMO. Good CMOs hire people who will push back, who will bring a different perspective, and who are better than the CMO in specific disciplines. They’re secure enough in their own judgement not to feel threatened by that.

And they stay close to the customer. Not through research decks and segmentation models, though those have their place, but through genuine curiosity about how real people make decisions, what they actually care about, and how the brand fits into their lives. That grounding keeps the strategy honest in a way that no amount of data analysis can replicate.

Understanding how audiences actually behave, and what signals genuinely indicate intent, is part of that. Audience insight tools can surface useful data, but the interpretation has to come from a CMO who already has a clear model of how their customer thinks and decides.

The CMO Role Is Harder Than It Looks From the Outside

CMO tenure at large companies has historically been shorter than almost any other C-suite role. That’s partly because the role is genuinely hard, and partly because expectations are often misaligned from the start. The business wants growth, the CMO is responsible for a subset of the activities that drive growth, and the attribution between those activities and the outcome is always contested.

The CMOs who last, and more importantly the ones who build something durable, are the ones who’ve resolved that ambiguity for themselves. They know what they’re accountable for, they’ve agreed it with the CEO, they’ve built a measurement framework that’s honest rather than flattering, and they’ve created enough internal credibility to defend their decisions when the results don’t come immediately.

That’s not glamorous. It’s not the version of the CMO role that gets celebrated in award shows or profiled in trade press. But it’s what actually works, and after 20 years of watching CMOs succeed and fail at close range, it’s the only version I’d back.

There’s more on how strong marketing leaders think and operate across the full Career and Leadership in Marketing section of The Marketing Juice. If you’re building toward a senior marketing role, or trying to understand what separates the operators who last from the ones who don’t, it’s worth spending time there.

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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