“What gets measured gets managed” is usually attributed to Peter Drucker. Yet according to the Drucker Institute he never said this. The writer Simon Caulkin traced the sentence to VF Ridgway’s 1956 warning about measurement.
Caulkin’s point was that the sentence is a a warning, not a slogan. What gets measured gets managed, even when measuring it is useless and even when management harms the organization.
Marketing seems to remember the slogan and forget the warning, increasingly to its detriment. As the concept of measurement (what I would call looking just over the hood of the car instead of down the road where you’re going) takes hold, you get used to simplified, quantified proxies like ROAS, CAC, and CTR.
Ultimately, you’ll be managing the dashboard instead of a brand. Numbers instead of meaning. Rational cues instead of emotional ones. Ultimately, you are optimizing for the metric rather than the outcome.
I’ve already covered the demand-side version of this topic in another article: Performance marketing captures demand but doesn’t create it, and brands that optimize the taps while ignoring the tank get stuck on what I call the indifference plateau.
But here’s the part that should concern your CFO more than your CMO. Optimizing performance metrics doesn’t just slow growth. It makes your brand fragile.
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Because marketing efficiency can create fragility
In his 2012 book “Antifragile,” Nassim Taleb draws a distinction in three directions. Fragile things break under stress. Sturdy things resist breaking. But antifragile things get stronger when they face adversity. Think about weight lifting. The muscle breaks down, only to heal stronger. Antifragile.
Here’s what it looks like in marketing. Optimization removes everything that is not quantified in the model. The slack, the redundancy, the immeasurable. If it cannot be quantifiably optimized, it is cut as waste.
But something more important day by day in this age of AI disappears from performance dashboards: meaningfulness, why a customer chooses you when you’re not the cheapest option in front of them. Cut it and your numbers will look better, leaner, more efficient. You have a higher ROAS. Lower CAC. Until you don’t anymore.
A meaningless brand has no buffer. It rents the demand of the future by discounting its value in the present. Looks great on a dashboard.
But not so good when a competitor creates a brand worth choosing, when your CAC increases, when a platform rewrites its algorithm, or when AI redirects discovery away from the performance channel you’ve optimized for a decade. So nothing keeps that customer in your orbit.
Being on the plateau of indifference doesn’t just mean stunting growth. It’s like a porcelain vase placed at midcourt during the NBA playoffs. It is fragile, it remains quietly on the balance sheet as an asset, until a competitor’s bounce pass shatters it beyond recognition.
The meaning is the antifragile good
The opposite of a fragile brand is not a brand that survives chaos. He is someone who gains shares because of that chaos.
Analysis by Alex Biel and Stephen King, cited in Kantar’s Recession Researchfound that brands that increased advertising during a recession gained more market share than brands that made the same move during a period of growth, about +0.9 points versus +0.5.
This is antifragility at work. The same investment paid off when conditions were at their worst. This is the definition of antifragility. The equivalent of your muscles growing even more when no one else is in the gym training.
In a recession, weak competitors cut their spending and vanish. Those who are antifragile seize the opportunity to become stronger and, crucially in this age of artificial intelligence, more visible.
Kellogg’s is a textbook case. When the Great Depression hit and the cereal market split evenly with Post, Post did the predictable thing and cut its advertising. Kellogg’s doubled its budget, aggressively went into radio and built a brand around a new cereal: Rice Krispies, Snap, Crackle and Pop.
By 1933, with the economy still in ruins, its profits had increased nearly 30 percent. A century later, it’s still one of the supermarket’s most resilient brands.
Brand meaning builds that resilience. AS Binet and Campo Documented for years and anticipated by the 60:40 rule, antifragility comes from reinforcing meaning, not sprinkling price promotion messages everywhere.
Over-index the activation expense, where returns decline rapidly and the part that increases and amortizes the margin is starved.
None of these gains require luck. Volatility is the reason they happen. Competitors who cut to protect short-term efficiency, while taking comfort in their performance framework, deliver them unchallenged.
Artificial intelligence exposes fragility
I’ve written about how AI-mediated discovery brings meaning to brands rather than media budgets. The antifragility frame explains why this is so dangerous for performance-optimized business: in all your efforts to be purchased at a discount, you are ignored by the AI.
The job of a stressor, in Taleb’s world, is to reveal hidden weaknesses. For years, a brand could appear healthy because its dashboards were green, with flowing conversions and maintaining ROAS.
AI is the shock that pulls discovery out of the funnel measured by those dashboards and redirects it through systems that read meaning, reputation and resonance, not price promotion.
Brands that trade meaning for efficiency get no warning. They simply stop being recommended. He never expected the dashboard, because the dashboard 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 the crisis. This means that the compounds are slow and cannot be installed within the deadline. The real question for the next budget review is not “What is our ROAS?”
It’s the new risk question: What happens to our demand the day our performance channels become more expensive, less effective, or completely hijacked?
If the answer is “Disappears,” you have no marketing efficiency. You have a fragility and you are spending your budget to deepen it.
Stop optimizing your brand towards the cliff. Fix something, prove something, stand for something so that when volatility comes, and it always comes, yours is the brand that gets stronger.
