Against the category killer.

§I A popular mistake.

The decks founders bring us, when they are thinking about how to beat a category leader, almost always contain the phrase category killer on or before slide five. The posture is seductive. Take on the incumbent directly. Out-execute them on the thing they are known for. Claim the crown. The posture is also, in our file, the single most expensive strategic mistake consumer brands make in years four through seven.

The reason is not that the posture is wrong in principle. It is that it mis-reads how category displacement actually happens. Category leaders are almost never unseated by braver, louder, better versions of themselves. They are unseated, slowly, by brands that do something they were structurally unable to do, for reasons that the leader cannot fix without cannibalising its existing customer base.

§II The defend test.

The test we use, with founders, is the defend test. Imagine the category leader's most loyal customer, asked to justify their brand choice to a friend. What do they say? If they defend it earnestly, the leader is safe. If they defend it apologetically, the leader is cracking. If they shrug, the leader has already been displaced; the market has not yet priced it in.

Category killers try to force the defend conversation. They make the incumbent's customer defend them, by being loud in the exact territory the incumbent occupies. This usually succeeds in strengthening the defence. The customer, asked to pick a side, picks the side they know. Loudness in shared territory benefits the incumbent more than the challenger.

The move, instead, is to become the brand the incumbent's customer does not feel the need to defend. You do this by operating in adjacent, not identical, territory. You do not fight for the category sentence; you earn a new sentence next to it, which the customer begins to use as a second-choice option without abandoning the first. Over time the sentences trade places.

You do not beat a category leader by making their customers defend them louder. You beat them by making the defence feel optional. — Jackson Morice

§III Adjacency, not identity.

The operational rule is: identify one specific thing the category leader cannot do without breaking their own model — a price point they cannot honour without commoditising, a tone they cannot adopt without contradicting their last decade of marketing, a format they cannot launch without cannibalising their hero SKU. Occupy that thing, not the thing they are known for.

This is slower, quieter, and less satisfying than the category-killer posture. It also, in our file, is the move that actually displaces incumbents. The challenger who tries to share the leader's sentence almost always ends up a discount of the leader. The challenger who takes an adjacent sentence ends up, five years later, as the brand the new shopper picks first, because the old shopper has stopped defending the incumbent and the new shopper does not know why they should.

§IV What quietly works.

Three examples from our file, with names compressed. A beauty brand that stopped positioning as the challenger to the category's prestige leader and began positioning as the category's answer to boredom. Three years later it had seven percent category share; the prestige leader still had thirty-one; but the beauty brand's growth rate was three times the leader's, and the prestige leader's customer was starting to shrug.

A supermarket-era food brand that stopped fighting for the health sentence — already owned by three public-company competitors — and began owning the sentence ‘what a good cook would actually buy’. Four years later it was the default on the shelf inside specialty grocery, quietly pulling customers from the health incumbents without a single ad that mentioned them.

A household brand that stopped trying to out-scale the scale leader on Amazon and instead built a direct-relationship model with refillable packs, a tone that felt like a small shop, and shelf partnerships with three specialty retailers. Seven years in, the scale leader's category share had flattened; the challenger's had quintupled. The challenger had never used the word killer in any internal document.