peter f drucker
No organization can depend on genius the supply is always scarce and unreliable. It is the test of an organization to make ordinary human beings perform better than they seem capable of, to bring out whatever strength there is in its members, and to use each man's strength to help all the others perform. The purpose of an organization is to enable common men to do uncommon things.
Leadership is not magnetic personality that can just as well be a glib tongue. It is not 'making friends and influencing people' that is flattery. Leadership is lifting a person's vision to high sights, the raising of a person's performance to a higher standard, the building of a personality beyond its normal limitations.