DONALD SULL is a global expert on strategy and execution in turbulent markets. He is a senior lecturer at the MIT Sloan School of Management and was formerly a professor of strategy and entrepreneurship at the London Business School, where he won three teaching awards. He earned his bachelor's, master's, and doctorate from Harvard University. He has published three award-winning books, ten best-selling Harvard Business Review articles, and over one hundred case studies, articles, and book chapters on strategy and execution in turbulent markets. The Economist identified his theory of active inertia as an idea that shaped business management over the past century and Fortune listed him among the ten new management gurus.
