An organization can execute only if the leader’s heart and soul are immersed in the company. Leading is more than thinking big, or schmoozing with investors and lawmakers, although those are part of the job. The leader has to be engaged personally and deeply in the business. Execution requires a comprehensive understanding of a business, its people, and its environment.
The leader must be in charge of getting things done by running the three core processes—picking other leaders, setting the strategic direction, and conducting operations.
From "Execution: The Discipline of Getting Things Done"
By Larry Bossidy and Ram Charan