Roger L. Martin · Roger L. Martin
articleinsightPTW/PI All-Stars Book Club – Chapter Twenty
7 September 2026Strategy
Source excerpt
About Roger L. MartinOn the Inseparability of Where-to-Play and How-to-Win
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Apollo layer
What a founder can learn
Founder takeaway
Treat where you compete and how you win as one integrated choice. A market is only attractive if your company has a credible advantage there, and an advantage only matters in a market where customers value it.
Why it matters
Evaluating markets and differentiation separately can lead founders into attractive segments where they lack an edge—or toward capabilities that do not create meaningful customer value. Testing both together makes strategy more coherent and resource allocation more disciplined.
Relevant guides
Put it to work
For each target customer segment, complete this sentence: “We will win with this customer because ___.” What evidence supports both the segment choice and the proposed advantage?
Private notes