Tyree -- I read a stat somewhere that he had a 20% off-target rate (which is some sort of stat people track) which was the highest in college football during the last 8 years or something. There was a broad difference of opinion on Tyree among those in the know and, apparently, it wasn't enough to get him drafted. Too much uncertainty to spend a draft pick on. I, like several others, was surprised someone didn't take a chance at the end of the draft.
AJ -- When the receivers didn't really go in the draft, he was on the short end. He didn't score well in some areas (speed, jumping, 3-cone) and despite nice highlights and other productivity, he didn't get his number called. I am keen to see how it works out in Tampa Bay. I am cautiously optimistic (between Tyree and Hodge) that AJ can have an impact.
Hodge -- I think the fact he didn't have a combine invite was a disadvantage...but he didn't really score well in important metrics (speed, strength, jumping) they use. He was certainly a tackling machine, though. Not sure what happens to Hodge at this point. Maybe he will get an invite at some point somewhere.
I am as disappointed as you all are about the fact that none of these guys were drafted. But I wish them the best of luck in their careers after college, be it in football or other endeavors.