I will believe he goes third when i see it? Who has the third pick and who would trade up to get that pick? I think he falls as low as fourth round because he cant read a D and make the throws. Remember the slant against LSU?
There are going to be between 5-10 franchises looking for their future franchise QB. If they have someone for him to sit behind and learn for 1-2 years. Seahawks, Colts, Falcons, Steelers, Redskins, Detroit, Texans, Jets, Saints, Panthers at least will be looking for the next guy. Possibly Denver since the Russel Wilson trade didn't give them what they hoped or even Tennessee since Tannehill is giving them his ceiling.
The point is that NFL GM's and Coaches all think they can fix any talent with potentials problems. More times than not they can't, but if they do they are looked at as geniuses. I see him going anywhere from 10-32 in the first round. At most he will drop to round 2. Most likely what will happen is that someone who picks high trades back into the first round if he's there in the later half of the 1st round.