Andrew Luck didn't win the Heisman Trophy, and he never led Stanford to a Pac-12 (or Pac-10) championship.
Still, the future No. 1 NFL draft pick leaves some pretty big shoes to fill after leading the Cardinal to back-to-back BCS bowls.
Maybe you don't really replace someone like Luck, but you sure have to try.
Every college football team out there has that one player it needs to find a suitable replacement for, or maybe a future All-American.
Here are the top 50 players who will be the toughest to replace in 2012.