This is from my son an OU person with very good insight:
Here is my take on the TJ/OU speculation: if a current OU coach said that, then I hope he or Bob Stoops told TJ this is what we're going to tell the scouts regarding you. IMO, either Venables (ex DC who left) or Willie Martinez (DB coach that was fired) probably said that TJ needs to prep better to max his game. I can't really believe that any coach associated with TJ would rip him for a couple of reasons;
1. TJ was a starter the day he hit campus, the kid can play
2. He recruited his butt off for OU and was very vocal in getting kids to commit.
Also note that this same web site ran stories that Trey Millard was going to declare for the draft and that wasn't the case. So just because TJ and Stills are reading and pissed about it doesn't mean it's true. This is obviously a huge issue and they may be over-reacting until they talk to Bob etc. But if they are at some camp training for the combine then who knows if and when that conversation will take place.
If an OU coach really did this then he is a selfish, naive, dumb- for doing so. Coaches get rewarded pretty well because of players like TJ. They don't have to lie to the scouts about him, nor should they back stab a kid in the back either. Especially one that did so much for them.
Now to the stuff you probably want to know... I think TJ would be a good fit here. He needs some physical development to help prevent injuries. He can tackle in space, has great instincts and should be effective in playing deep zone coverage. He is a good not great athlete by NFL DB standards so be careful with him in man coverage. But he would be a nice player in the Tampa-2 and he can be an asset on STs as well.