GRETCHEN M. SPREITZER is an associate professor of management and organization at the Marshall School of Business at the University of Southern California, where she is a faculty affiliate of both the Center for Effective Organizations and the Leadership Institute. Her research has been published in Sloan Management Review, Academy of Management Review, Organizational Dynamics, and many other professional journals.

ROBERT E. QUINN holds the M. E. Tracy Collegiate Professorship at the University of Michigan and is a professor of organizational behavior at the University of Michigan Business School. His most recent book is Change the World: How Ordinary People Can Accomplish Extraordinary Results (Jossey-Bass, 2000).