KENWYN K. SMITH teaches at the University of Pennsylvania in the School of Social Work, and in executive programs at the Wharton Business School. He has devoted his career to the study of organizational change, group and intergroup dynamics, and conflict management. Over recent years, Smith has focused his studies on how organizational dynamics impact the physical and emotional health of employees DAVID N. BERG maintains a private practice in organizational psychology and also teaches in the department of psychiatry at the Yale School of Medicine. A professor of organizational behavior for fifteen years, Berg continues to work as a consultant to various organizations and groups. He is the deputy editor of the Journal of Applied Behavioral Science and has an abiding interest in group and intergroup relations, as well as organizational diagnosis. He lives in Bethany, Connecticut.