The late Russell L. Ackoff was the Anheuser-Busch Emeritus Professor of Management Science at The Wharton School, University of Pennsylvania. A founding member of the Institute of Management Sciences, his work in consulting and education involved more than 350 corporations and 75 government agencies in the United States and beyond. Management grandee, he was ranked 26 in a recent list of the world's most influential business thinkers.