About the Author

Hal Gregersen is a professor of leadership at INSEAD. He consults to organizations around the world on innovation, globalization, and transformation and has published extensively in leading academic and business journals. Clayton M. Christensen is the Robert and Jane Cizik Professor of Business Administration at Harvard Business School and the architect of and the world's foremost authority on disruptive innovation. Jeff Dyer is the Horace Beesley Professor of Strategy at the Marriott School, Brigham Young University. He is widely published in strategy and business journals and was the fourth most cited management scholar from 1996-2006. Audie award winner Mel Foster's background in acting dates back to his days at the University of Michigan, where he received an MA in Theater. His career has covered everything from acting and directing to writing and casting. He lives outside Detroit, Michigan.