Define what a "great" coach is

All too often on here whenever somebody brings up Spurrier, or Ferentz, or whomever and mentions their mediocre records of late, another poster instantly says "Dude, it's Iowa/SC, they have no talent, what do you expect?" But wouldn't one of the marks of being a great coach the ability to close the talent gap with other teams through playcalling and gameplanning?

Take Spurrier. His success came at a time when he had a completely different offense than the rest of the league, and better atheletes across the board. It was innovative and fresh and he dominated with it. Once the rest of the teams caught on and adapted, the dominance was gone. And obviously without superior talent he can't get anything done at SC.

My point is, shouldn't we look for coaches who have inferior talent and yet find a way to make their teams competitive without that advantage. That way when they come to a school like LSU the advantage instantly becomes theirs with the talent upgrade.