The Leadership Circle is a complete system for leadership development, combining best-in-class tools for individuals, teams, and organisations. Our Universal Model of Leadership is the backbone of our assessment tools, coaching practices, and overall individual and organisational development methodology. If we want to develop more effective leaders, and do that more rapidly and sustainably, we need a more comprehensive approach. The field of leadership development is a fragmented collection of theories and practices. The Leadership Circle has taken the best of what has been learned over the last half century and woven it into the first unified theory of leadership development to arise in the field. Based on this unique framework, we offer a complete and integrated system of leadership development. There is no substitute for effective leadership.