In a new role, first you must prove what you know. Next, you must prove what you know about yourself and who you believe you can become. Finally, in leadership, you must know when to be the smartest person in the room and when to be the thoughtful ‘believer’ in the room. It is a leader’s belief system that provides the foundation for what everyone else will think, decide and act. Success is part knowing who you are and knowing what you believe. And, when to leverage each.