"Leadership" is as elusive a concept as there is in business—not
that that has prevented scores of writers spilling torrents of ink on
it. (The general form of the tautology in this management literature
is: It requires a great leader to build a great organization, but/and
the most important characteristic of a great organization is developing
great leaders. Res ipsa.)
CIO Magazine has a perceptive column that actually has something
to say about what it takes to lead: Start with character, teamwork,
passion, and persuasiveness.