My answer to When offered a management position, how does an employee grow to the role of a leader?
Answer by Ken Larson:
The terms leader and manager cannot be used interchangeably. One is a science. The other is an art.
Leadership is a science and can be taught. I have known great military, scientific and technical leaders in their narrow bands of expertise who were lousy managers, did not aspire to be managers and generally were not managers. They could lead others, but lacked the vision to manage resources, time, communication and the big picture.
Excellent management is driven by innate personal qualities, which, when combined with leadership, create the management art. Below are two principal management attributes I have observed that make great managers different from great leaders:
1. They know how much leadership to offer and how much to let the individual grow on his or her own. They strike the right balance between specific and generic guidance so the unique individual traits of the workers come through in the business model and solutions to problems, system design and success of the firm are derived from the people running the enterprise and not from the leader.
2. They manage constructively by fostering an environment respectful of all points of view but drive to fulfilling progressive objectives as a first priority and blend differences of opinion decisively.