A great business with terrible management will eventually underperform. The CEO's most important job over the long term is capital allocation — deciding what to do with each dollar of profit the business produces. Reinvest at high returns?

Buy back stock? Pay dividends? Make acquisitions?

Pay down debt? Different answers compound into very different shareholder outcomes over a decade. Buffett, Bezos, Nadella, and a few dozen others have produced extraordinary results largely because they allocate capital exceptionally; many otherwise-capable CEOs destroy enormous value through bad acquisitions and ill-timed buybacks.

A CEO who generates $10B of free cash flow has five basic options: reinvest in the business (R&D, capacity, hiring), make acquisitions, repurchase stock, pay dividends, or repay debt. The right answer depends on opportunity cost. Reinvestment makes sense when ROIC on incremental capital exceeds the cost of capital.

Acquisitions make sense when bought below intrinsic value AND integration is feasible.