Did he do it alone? Of course, not. But, what a leader. He is the type of leader that you would follow anywhere. He has a commanding presence through his take-charge attitude, but more importantly, you respect the hell out of him because he was the one individual responsible during both incidents. He recognized that he served at the will of the President and for whatever reason (i. e. political) could have been fired at any time.
One key piece of advice from Admiral Allen was "Be transparent and if you can't be transparent, be honest.” He so well demonstrated that advice during the many press conferences for each crisis.