In John Kotter’s, article in the Harvard Business Review, “What Leaders Really Do,” he sets about defining the differences between leadership and management and their inter-dependence and inter-relationship. He states,
“Leadership is different from management, but not for the reasons most people think. Leadership isn’t mystical and mysterious. It has nothing to do with having “charisma” or other exotic personality traits. It is not the province of a chosen few. Nor is leadership necessarily better than management or a replacement for it.
Rather, leadership and management are two distinctive and complementary systems of action. Each has its own function and characteristic activities. Both are necessary for success in an increasingly complex and volatile business environment.”
He further states that management is about coping with complexity while leadership is about coping with change. Managers make things work while leaders look for the next thing.
This is a link to Mr. Kotter’s full article from the Harvard Business Review.