Bruce J. Avolio, Ph.D., is the Marion B. Ingersoll Professor and Director of the Center for Leadership & Strategic Thinking in the Michael G. Foster School of Business, University of Washington. Dr. Avolio has a global reputation as a researcher and practitioner through his work on leadership and its development. Over his career, he has published 11 books and over 125 articles on leadership and related areas in a variety of top journals including the Academy of Management Journal, Academy of Management Review, Journal of Applied Psychology, Personnel Psychology, Organizational Behavior & Human Decision Processes, and the Leadership Quarterly. Dr. Avolio is currently on the editorial boards of the Leadership Quarterly, Journal of Applied Psychology, and the Academy of Management Journal. Over the past 20 years, Dr. Avolio has done extensive work with the U.S. Military through contract funding from the Army Research Institute, the Center for the Advanced Professional Military Ethic, and the U.S. Veterans Administration. He is also currently working in the healthcare sector focusing on how strategic change and transformation occurs for positive impact on performance. Francis J. Yammarino, Ph.D., is SUNY Distinguished Professor of Management and Director of the Center for Leadership Studies at the State University of New York at Binghamton. He was senior editor of the Leadership Quarterly and co-editor of Research in Multi-Level Issues, has served on eight scholarly journal editorial review boards (Academy of Management Journal, Journal of Applied Psychology, Leadership Quarterly, Journal of Organizational Behavior, Organizational Research Methods, Personnel Psychology, Group & Organization Management, Journal of Leadership & Organization Studies), and is a Fellow of the Society for Industrial and Organizational Psychology and the Association for Psychological Sciences. Dr. Yammarino has published 14 books and about 150 journal articles and book chapters; has received several teaching and research awards; and is the recipient of about $3 million in research grants from various public and private organizations. He has been a consultant to numerous organizations including IBM, TRW, Medtronic, Lockheed Martin, the United Way, and the U.S. Army, Navy, Air Force, and Department of Education. He has served on numerous committees in the Academy of Management and Society for Industrial and Organizational Psychology, and as an elected Representative-at-Large for the Organizational Behavior and Research Methods Divisions of the Academy of Management. In 2010, Dr. Yammarino received the Distinguished (Eminent) Leadership Scholar Award from the Leadership Quarterly and Academy of Management Network of Leadership Scholars for outstanding career contributions to the study of leadership."