"Four key functions collectively define a successful role for the CEO in a transformation:
Making the transformation meaningful. People will go to extraordinary lengths for causes they believe in, and a powerful transformation story will create and reinforce their commitment. The ultimate impact of the story depends on the CEO’s willingness to make the transformation personal, to engage others openly, and to spot- light successes as they emerge.
Role-modeling desired mind-sets and behavior. Successful CEOs typically embark on their own personal transformation journey. Their actions encourage employees to support and practice the new types of behavior.
Building a strong and committed top team. To harness the transformative power of the top team, CEOs must make tough decisions about who has the ability and motivation to make the journey.
Relentlessly pursuing impact. There is no substitute for CEOs rolling up their sleeves and getting personally involved when significant financial and symbolic value is at stake."
Read more in The McKinsey Quarterly: The CEO's role in leading transformation.