Change agent

Also see:

The leader of a Lean conversion who possesses the willpower and drive to initiate and sustain fundamental change. The change agent - who often comes from outside the organization - does not have to have detailed knowledge of Lean thinking at the beginning of the conversion.
That knowledge can also come from an Lean expert. But it is imperative that the change agent be prepared to ensure that the knowledge is applied and becomes the new way of thinking. 

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