Vince Lombardi on the value of the quarterback in football from David Maraniss' When Pride Still Mattered:
While Taylor and Hornung were running toward records at season's end, Lombardi realized that his Packers would rise only as high as their quarterback could take them. He would often tell his cronies at dinner that football was the perfect team game except for one glaring imbalance---the quarterback was too important.
A pitcher might be more dominant in baseball, but a baseball team had a staff of pitchers; there was only one quarterback. A goalie was pivotal in hockey, but a goalie did not have to call plays or worry about much beyond his own performance.
To win in the pros, Lombardi said, you needed a quarterback who could be a coach on the field, someone who was intelligent, rational, unflappable and occasionally daring, as well as a gifted passer.