Motivating, inspiring, connecting others. Creative exploration of options. Political lobbying for support. In a world that never changes, all a good manager has to do is maintain status quo. Leaders tend to take their followers from one place to another.
Managers are necessary, leaders are essential.
All leaders need to be able to manage, but few managers have the talents, qualities, or inclinations to be leaders. It is Paramount to understand that there are leaders and there are managers. They can be thought of as two separate circles with leaders in one and managers denoted in the other. These circles however intersect. This is the area of interest where those who are both managers and leaders reside.