Barbara Kellerman has long been known as an expert on leadership. However in recent years, as is evident in her latest books, her thinking about leadership has significantly shifted. She now thinks not in terms of leadership per se - but in terms of the leadership system. This involves a more holistic approach to the leadership process including, in addition to leaders, followers (or others), and also the context(s) within which leaders and followers necessarily are located. Kellerman argues that only by adopting this somewhat more complex model of how change is created, can we come to understand what’s happening and why, and can we hope to learn to lead more wisely and well.