" At senior levels in most organizations, people have large egos. But unless they also have a realistic sense of their weaknesses and limitations, unless they can appreciate complementary strengths in others, and unless they can subjugate their immediate interests to some greater goal, they will probably contribute about as much to a guiding coalition as does nuclear waste. If such a person is the central player in the coalition, you can usually kiss teamwork and a dramatic transformation good-bye. "

― , Leading Change