Management is about 'making it happen'. Hence the continued emphasis on the proctical, action centred aspects of the job.

Integrating people in a common venture.

gaining Commitment to shared goals and values

helping people to learn

communicating

fostering responsibility

measuring performance

minimizing costs.

Yet all of these are essentially mental activities. Without effective thinking, we would be unable to perform a single one.

When you don't have enough information to tell you what to do, you have to think. When you have too much information to make an obvious decision, your have to think. When you are faced with several possible courses of action, you have to think.