My evaluation was that he doesn't have NFL arm talent or pocket movement. He's a statuesque pocket slug who doesn't throw with velocity and Pitts bailed him out of a lot of off-target throws.
Arians' offense doesn't make things easy for QBs. There isn't a lot of motion, play action, window dressing and easy defined throws in his base playbook. You have to win from the pocket pushing the ball down the field on intermediate or deep option routes. Every QB struggles when they first learn the offense. Manning did, Palmer did, Big Ben did, Brady did - people forget the picks he threw on speed outs and miscommunications the first few weeks - until he tuned the scheme more to his liking, and this is all stuff I explained in detail when
@Liberty City El and others ignorantly tried to argue with me about Jameis.
He might bust too but I have no idea why they didn't just draft Davis Mills who at least has some mobility and a solid arm with flashes of anticipatory throws on tape. Trask has no starter ceiling. It's like they took him just to appease the **** fans but even they probably knew he wasn't gonna cut it in the pros.