Let me start by saying I like Grayson quite a bit and think Fro's mock of Collins, Erving and Grayson the best. That being said and please bear in mind we are talking about a 3rd rounder.
My biggest concern at the next level is his ability to go through his progressions. He can make the throws but can read the defense and take what the defense gives him. In 90% of his plays he takes 1 read, keys on that read and delivers to that person. I don't see a QB going through his progressions.
Even his deep balls he is locked into the hot reciever and never looks off. Never a pump fake to draw the safety away from the coverage.....not even a glance to the other side of the field. Sounds sime and an easy fix but you can't get away with that at the next level.
There is a lot to like about his game but this is a concern for me and something that is kind of a big deal. It's small details that separate greatness and mediocrity. Bradford had a similar problem his first 2 or 3 years in the NFL and still something he has not fully corrected, so it's not exactly an easy fix.
That being said I would love this guy in the 3rd and still like Fro's mock with Grayson in the 3rd