“Their success illustrated once again that leadership is the most important thing on any battlefield; it is the single greatest factor in whether a team succeeds or fails. A leader must find a way to become effective and drive high performance within his or her team in order to win. Whether in SEAL training, in combat on distant battlefields, in business, or in life: there are no bad teams, only bad leaders.”
Jocko Willink and Leif Babin