Leadership3 is a 40 item forced-choice leadership development assessment that provides organizations and decision makers with key insights including: (1) PERSPECTIVES - the instrument provides both individual and organizational insights into the culture and leadership development opportunities as perceived by both leadership and the rank and file; (2) POTENTIAL- the instrument identifies internal leadership talent and desirability within the organizational labor pool beyond the one-sided (typical) viewpoints of making leadership selections for development based only on top management’s perspective; and (3) PROFILES - the instrument provides graphical presentation of the convergence and divergence of leadership development perspectives between leadership and workers. The current study presents a case study of the evaluation application of this unique instrument in assessing the effectiveness of an organizational transition towards becoming a high performing organization.#2010Conference #BusinessLeadershipandPerformance