“But when he analyzed what the highest-performing companies had in common, the nature of their CEOs jumped out at him. Every single one of them was led by an unassuming man like Darwin Smith. Those who worked with these leaders tended to describe them with the following words: quiet, humble, modest, reserved, shy, gracious, mild-mannered, self-effacing, understated. The lesson, says Collins, is clear. We don’t need giant personalities to transform companies. We need leaders who build not their own egos but the institutions they run.”