There's a big difference between Diva and dunce, Bryant was reportedly late for not only team activities, but games in college. He also apparently has the mentality of a 12 year old, the one that makes it seem OK to lie if the truth will hurt them more. When he ran an awful 40 on his pro day (the most meaningful 40 he'll run in his entire career) he said that he forgot his best pair of cleats. In followup questions he admitted he had 20 pairs with him.
PFT says that more than 10 teams at this point have taken him off the draft boards. He could be the next Randy Moss, but will he perform like Randy @ the Raiders, or Randy @ The Pats/Vikings? TBD, and not worth the risk for most.
I think alot of that is smoke screen for teams OUTSIDE the top ten picks in HOPES he is still around for the middle 1st round. That guy will NOT be around late 1st round(picks 20 and above).