// strategy library · roger martin

The Customer Is the Only Judge

Law II of Martins Three Laws, and the reason Martin rewrote his definition in Strategy Is Choice. A company controls nearly everything about itself, pricing, hiring, product, structure, spend.

A company controls nearly everything about itself, pricing, hiring, product, structure, spend. The single thing it cannot control is what the customer does. Strategy therefore has one purpose: to configure everything you control so as to move the one thing you don't, Compelling Customer Action.

Consequences:
- Internal measures of strategic success (alignment, milestones, initiative completion) are proxies at best, theatre at worst.
- A How to Win is only real if the customer can perceive and act on the advantage. Technical superiority the buyer cannot see or does not value compels nothing.
- Strategy review should begin from evidence of changed customer behaviour, not progress against plan.

This law is the sharp edge against Strategy Impostors, a beautiful plan that leaves customer behaviour unchanged is a failed strategy with good production values. It is also the sharpest argument ever made against Task-Based Key Results.

Our synthesis of Roger Martin’s published work, sources credited. Read the originals: they’re excellent.

// connected concepts
Martins Three Laws → Strategy Is Choice → Compelling Customer Action → How to Win → Explore all 122 notes →
// put it to work

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