ADRIAN J. SLYWOTZKY is the author of Value Migration and the coauthor of The Profit Zone and Profit Patterns. Mr. Slywotzky is a graduate of Harvard College and has an M.B.A. from the Harvard Business School and a J.D. from Harvard Law School. He is vice president of Mercer Management Consulting and was recently selected by Industry Week as one of the six most influential people in management.

DAVID J. MORRISON is the coauthor of The Profit Zone and Profit Patterns. A graduate of the U.S. Naval Academy, he also holds an engineering degree from Princeton and an M.B.A. from Harvard Business School. Mr. Morrison is vice chairman of Mercer Management Consulting and head of MercerDigital, the firm's e-commerce practice.