Arizona State
LB Davon Durant
Oh Davon Durant, we hardly knew ye. Durant was one of the nation's top JC prospects and the rare JC guy who seems like he could be an instant All-Pac-12 player, but he didn't even make it to fall camp, getting dismissed for off-the-field issues.
Cal
DE Brennan Scarlett
Scarlett was a frequently-injured pass rusher for the Bears who it will hurt for them to watch suit up for Stanford in 2015.
Colorado
DE Tyler Henington
The Buffs were hoping that Henington could come back and help their ailing defensive line after missing all of 2014 due to injury, but he recently went down with an injury again and will not play in 2015.