J. Stewart Black, Ph.D. is a professor of business administration at the University of Michigan. An internationally recognized scholar on change and transformation, he is a frequent keynote speaker at conferences around the world and company functions. He is regularly sought out to help leading companies globally with strategic change initiatives and the development of their senior leaders and high potential managers. Dr. Black has served on the faculties of the Amos Tuck School of Business Administration at Dartmouth College and the University of California, Irvine. He is the author of eight other books and nearly 100 articles and case studies that have been widely used in both university classrooms and corporate boardrooms.

Hal B. Gregersen is the Donald L. Staheli Professor of Global Leadership in the Marriott School at Brigham Young University and taught previously at Dartmouth College, Pennsylvania State University, and the Turku School of Economics in Finland as a Fulbright Fellow. Dr. Gregersen is a frequent keynote conference speaker on leading strategic change and an executive education contributor in companies (Cemex, IBM, Intel, LG Group, Lockheed Martin, Marriott, and Nokia) and universities (University of Michigan, Helsinki School of Economics, Tufts University, Thunderbird, and University of Western Ontario) around the world. As author of seven books and over 60 articles in publications like the Harvard Business Review and Sloan Management Review, Dr. Gregersen is a globally respected scholar on how firms find and build executive leaders capable of conceiving and achieving worldwide change. He has appeared on programs such as CNNfn and his cutting-edge research on global leadership has been cited in numerous publications such as BusinessWeek, Fortune, and The Wall Street Journal.