The leaders I met, whatever walk of life they were from, whatever institutions they were presiding over, always referred back to the same failure something that happened to them that was personally difficult, even traumatic, something that made them feel that desperate sense of hitting bottom-as something they thought was almost a necessity. It's as if at that moment the iron entered their soul; that moment created the resilience that leaders need.
Warren G. Bennis (1997). “Managing People is Like Herding Cats”, Executive Excellence Pub