“What gets measured, gets managed” is generally attributed to Peter Drucker. Yet, according to the Drucker Institute, he never said it. Writer Simon Caulkin traced the sentence to VF Ridgway’s 1956 warning regarding measurement.
What Caulkin meant is that this expression is a a warning, not a slogan. What is measured is managed, even when measuring it is unnecessary and even when management harms the organization.
Marketing seems to remember the slogan and forget the warning, increasingly to its detriment. When thinking about metrics sets in (what I’d call looking just over the hood of the car instead of down the road you’re going), you get used to simplified, quantified proxies like ROAS, CAC, and CTR.
Ultimately, you manage the dashboard instead of a brand. Numbers instead of meaning. Rational rather than emotional cues. Ultimately, you optimize for the metric rather than the outcome.
I’ve already made the demand version of this argument in another article: performance marketing captures demand but doesn’t create it, and brands that optimize taps while ignoring tank blockage on what I call plateau of indifference.
But here’s the part that should worry your CFO more than your CMO. Optimizing KPIs doesn’t just slow growth. This makes your brand fragile.
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Why Marketing Effectiveness Can Create Fragility
In his 2012 book “Antifragile,” Nassim Taleb makes a threefold distinction. Fragile things break under stress. Robust objects resist breakage. But antifragile things become stronger the more they face adversity. Consider weightlifting. The muscle breaks down, only to heal stronger. Antifragile.
Here’s what it looks like in marketing. The optimization removes anything that is not quantified in the model. The relaxation, the redundancy, the immeasurable. If it cannot be optimized in a quantifiable way, it is considered waste.
But something more critical day by day in the AI era is disappearing from performance dashboards: the meaning, the reason why a customer chooses you when you are not the cheapest option in front of them. Reduce that and your numbers look better, simpler and more effective. You have a higher ROAS. Lower CAC. Until you don’t.
A brand without meaning has no stamp. It praises the demand of the future by updating its value in the present. It looks great on a dashboard.
But it’s not so good when a competitor builds a brand worth choosing, when your CAC inflates, when a platform rewrites its algorithm, or when AI hijacks discovery of the performance funnel you’ve spent a decade optimizing. So nothing keeps this client in your orbit.
Being on the plateau of indifference doesn’t just mean stunting growth. It’s like a porcelain vase sitting in the middle of the court during the NBA playoffs. He is fragile, quietly appearing on the balance sheet as an asset, until a competitor’s bouncing pass breaks him to the point of making him unrecognizable.
Meaning is the antifragile asset
The opposite of a fragile brand is not one that survives chaos. He is the one who gains share because of this chaos.
Analysis by Alex Biel and Stephen King, cited in Kantar Recession Researchfound that brands that increased their advertising during a recession gained more market share than brands that made the same move during a period of growth, approximately +0.9 points versus +0.5.
This is antifragility at work. The same investment was more profitable when conditions were worse. This is the definition of antifragility. The equivalent of growing your muscles even more when no one else is working out in the gym.
In a recession, weak competitors reduce their spending and disappear. Antifragiles are taking the opportunity to become stronger and, especially in the age of AI, more visible.
Kellogg’s is a textbook case. When the Great Depression hit and the cereal market was split evenly with Post, Post did the predictable and cut back on its advertising. Kellogg’s doubled its budget, moved aggressively into radio and built a brand around a new cereal: Rice Krispies, Snap, Crackle and Pop.
By 1933, with the economy still in shambles, its profits had increased by almost 30%. A century later, it’s still one of the supermarket’s most enduring brands.
Brand meaning reinforces this resilience. As Binet and Field documented for years and of which the 60:40 rule is anticipated, antifragility comes from a strengthening sense, and not from the dissemination of price promotion messages everywhere.
Overindex on activation expenses, where returns diminish quickly, and you starve the part that both compounds and buffers the margin.
None of these winnings require luck. Volatility is why they occur. Competitors who cut back to protect short-term efficiency, while taking comfort in their performance dashboard, are yielding without question.
AI reveals fragility
I’ve written about how AI-mediated discovery gives meaning to brands rather than media budgets. The antifragility framework explains why this is so dangerous for performance-optimized businesses: in all your efforts to get a discounted purchase, you are ignored by the AI.
A stressor’s job, in Taleb’s world, is to reveal a hidden weakness. For years, a brand could appear healthy because its dashboards were green, with smooth conversions and stable ROAS.
AI is the shock that takes discovery out of the funnel measured by dashboards and redirects it into systems that read meaning, reputation and resonance, not price promotion.
Brands that trade meaning for effectiveness don’t get a warning. They simply stop being recommended. The scoreboard never saw it coming, because it was precisely the scoreboard that was the problem.
Build the buffer before the shock
Here’s the trap within the trap: you can’t buy your way out in the middle of a crisis. This means that it compounds slowly and cannot be installed on schedule. The real question for your next budget review isn’t “What is our ROAS?” »
This is the new question of risk: what happens to our demand the day our performance channels become more expensive, less efficient or are completely hijacked?
If the answer is “It disappears,” you have no marketing effectiveness. You are fragile and you spend your own budget to deepen it.
Stop optimizing your brand towards the cliff. Solve something, prove something, stand for something so that when volatility comes, and it always does, your brand is strongest.
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