We need a new way of thinking about leadership and a new approach to leading, say MIT Sloan's Deborah Ancona and Hal Gregersen. They suggest what is called, "challenge-driven leadership." We shouldn't be asking, "Are you a leader?" Rather we should ask, "What problem do you care enough about that you're willing to step up and do something about?"

Deborah Ancona bio: http://mitsloan.mit.edu/faculty-and-r...
Hal Gregersen bio: http://mitsloan.mit.edu/faculty-and-r...