A question from Yahoo! Answers (by Deepak Chopra, no less):
What qualities define a great team leader?
Qualities do not define a team leader; teams and their purposes do.
It is extremely naive to think that leading a team of crusaders to sack Constantinople and leading a team of research scientists to discover a polio vaccine somehow require similar qualities… Speaking of sacking Constantinople, the greatness of this particular achievement was undisputed back when it happened, but was eventually rethought…