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Why defense primes still can’t innovate
Oct 14, 2026
Contributor Content
Rational Optimist Society
Professor Clayton M. Christensen was in his Harvard Business School office when his telephone rang. On the other end was William Cohen, Secretary of Defense, who asked: “Clay, I wonder if you could come to the Pentagon because we want to study what you have written.” That meeting would change not only the professor’s life but how the US military operates. The Defense Secretary had read Christensen’s book The Innovator’s Dilemma and wanted to know how his theory of disruption applied to the US...
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