About the Authors:

Steve Zaffron is the CEO of the Vanto Group, a global consulting firm those designs and implements large-scale initiatives to elevate organizational performance.  Vanto Group has consulted with such companies as Apple, GlaxoSmithKline, Johnson & Johnson, Heinz Northern Europe, Reebok, Northrop Grumman, Petrobras, Telemar Brazil, and Polus Group Japan.  A highly experienced international consultant, Steve has worked with top executives and has led programs for over 100,000 people worldwide.  He holds an MA from the University of Chicago and a BA from Cornell University. 

Dave Logan is a professor at the Marshall School of Business at the University of Southern California and is a former associate dean.  He is also senior partner of CultureSync, a management consulting firm whose clients include Intel, American Express, Charles Schwab, Prudential, and Health Net.  Logan has written three books, including Tribal Leadership.