If that's true, i blame Kelly and Bryant, the both.
Kelly for not having alternatives. You can move Amir to the Slot, even sacrifice Mcdaniel (a tough guy who deserves his playing time, sure) but you've to make decisions and Bryant is a better player, period. But no, he clearly can not handle this situation. He needs to understand that a five star, especially if he is from Florida, Cali or far away, wants to play right away and you have to "consent" this players. Maybe it's unfair, but this is the way how it works when you have this "diva" type of players. We can not blame Kelly for the Vanderdoes situation, but i think this is his fault in some way. The same with Davonte Neal (who really leaves because of his playing time). You can not play with Robbie Toma over him or with Cam Mcdaniel over Greg Bryant.
He says he has some problems with pass protection/assignments. Really? A guy who his father is a football coach. A guy who come here with a good reputation a blocker. A smart guy who had months to learn the playbook. Alex Collins only played football for two years prior to his college career, come to Arkansas as a poor blocker and now is the best RB as a True Freshman and plays a lot. Man, i'm sure that Bryant is smarter while sleeps than Dyer, Crowell or other TF's who played a lot in his first year. Sounds an excuse to me, if that's what true, why would he leave? He should stay and fix this problem. He clearly thinks he can play.
And Bryant maybe has some nice muscles but maybe his head is soft. All this drama with only a month of competition, frustrating.
I think all parts have some fault. If he leaves, good luck.