From everything I've read, the kid's just too young. I recall Bryce Harper going through all kinds of media exposure and everyone saying, see, he's a ****. The exposure ramps up just four or five years later, with the Twitter and the Instagram LOL.
Everyone wants an NFL QB to behave like a CEO, but that's not going to happen when you're 19 or 20.
Back in the day, no one gave Heismans to a frosh or soph for the very arcane reason that they weren't ready or they hadn't earned tenure. 19-20 year old guys are retards. This kid's just being a retard, but everyone wants him to act like Peyton Manning. ****, Peyton was a boring **** when he was 20. They don't make too many of those.
And BTW, all the speculation is based on the idea that Manziel is going to someday be asked to be an NFL QB. Another thing from back in the day was that guys like these didn't even sniff an NFL field, they went to the CFL or whatever place they let little QBs run around like a maniac or convert to WR. Still a 50/50 chance he disappears.