ONE Doing Business in the Lego World


The assumptions on which most businesses are being run no longer fit reality.1

—Peter F. Drucker


As I crisscrossed the country over the past couple of years, interviewing Peter Drucker and working with clients, something struck me. The staid world of business—the world I’d studied, the world I felt I’d mastered during 20 years at McKinsey & Company and as head of my own consulting firm—had been turned upside down by a silent revolution. In this chapter, I describe that revolution, tell you how Peter helped me understand this radical transformation, and explain what it means for you right now.


Change came gradually, predictably, to businesses in the period following World War II through ...

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