1. Vernon Adams QB Oregon - Crazy that a player who was only at his program for a few months is the hardest to replace player, but there is no denying no player in the conference's presence played a bigger role in the overall performance of his team. The Ducks looked like a national title contender with Adams firing on all cylinders but looked like a four-five-win team without him. The Ducks are trying to replace him with another Big Sky grad transfer, but it's almost impossible to think he will be anywhere near the player Adams was.
Toughest 2015 Pac-12 players to replace in 2016
