Peter F. Drucker argues that what underlies the current malaise of so many large and successful organizations worldwide is that their theory of the business no longer works. The story is a familiar one: a company that was a superstar only yesterday finds itself stagnating and frustrated, in trouble and, often, in a seemingly unmanageable crisis. The root cause of nearly every one of these crises is not that things are being done poorly. It is not even that the wrong things are being done. Indeed, in most cases, the right things are being done—but fruitlessly. What accounts for this apparent paradox? The assumptions on which the organization has been built and is being run no longer fit reality. These are the assumptions that shape any organization's behavior, dictate its decisions about what to do and what not to do, and define what an organization considers meaningful results. These assumptions are what Drucker calls a company's theory of the business.

The Harvard Business Review Classics series offers you the opportunity to make seminal Harvard Business Review articles a part of your permanent management library. Each highly readable volume contains a groundbreaking idea that continues to shape best practices and inspire countless managers around the world—and will have a direct impact on you today and for years to come.

In his sixty-five-year consulting career, Peter F. Drucker, widely regarded as the father of modern management, identified eight practices that can make any executive effective. Leadership is not about charisma or extroversion. It's about these practices: Effective executives ask, "What needs to be done?" They also ask, "What is right for the enterprise?" They develop action plans. They take responsibility for decisions. They take responsibility for communicating. They focus on opportunities rather than problems. They run productive meetings. And they think and say "we" rather than "I." Since 1922, Harvard Business Review has been a leading source of breakthrough ideas in management practice. The Harvard Business Review Classics series now offers you the opportunity to make these seminal pieces a part of your permanent management library. Each highly readable volume contains a groundbreaking idea that continues to shape best practices and inspire countless managers around the world.