David J. Collis has been a professor in the Strategy Unit at Harvard Business School for 35 years. He is also a professor and executive adviser at the Hult International Business School and the author of multiple books, including International Strategy. Formerly of Boston Consulting Group, he has been a strategic consultant to top management of major international corporations, including MetLife, Maersk, Edward Jones, and Fidelity Investments, and many entrepreneurial ventures. He is the cofounder of the e-learning company E-Edge and the advisory firm Ludlow Partners. Collis is a frequent speaker; participates in and chairs executive education programs across the Harvard schools; and has served on many advisory boards, including WebCT and Ocean Spray.