I find this interesting. Actually, I'm a little shocked to see him pack it up so early and leave (unless his Dad is in fact on the way out).
Obviously the quarterback battle next season is going to be between Klein and Tuggle. But they will be juniors and will only be around for two years. After that, Cosh would have been a junior and Sams would have been a sophomore (if he redshirts next season). Did Billy not think he had a shot at playing time once those two graduate?