If a hat fits you then wear it, the popular saying tells.

But which hat is a good fit for a manager? The black, the yellow, the white, the red, the green or the blue? (Edward de Bono Six Thinking Hats)

A good manager is not the autocratic, nor the participative, nor the consultative, nor the coaching type.

Then who is it?

A good manager is the one that can wear all those hats, one at a time according to circumstances and his greatness comes from knowing when to wear each hat and how to transition from one to another.