If strategy is about creating a competitive advantage that allows a firm to win, then pinpointing your strategy to a few critically important choices will dramatically increase your chances of success. This is especially true in the volatile and complex environment that has become the norm for all of us. Yet the authors of Playing to Win, A. G. Lafley, the former CEO of Procter & Gamble and one of the most successful business leaders of the last century, and Roger Martin, Dean of the Rotman School of Management, say most firms shy away from these difficult strategic choices, settling instead for false approaches that can lead to irreversible blunders.