He's growing on me, but I think #23 is too high for him. I've got him as a mid-2nd round value. I'd like to see some film to see how he is defending the run before I'd consider him higher. From what I remember, he wasn't very good at it. But I also think it was a lack of desire, and not, like Maybin for example, a lack of ability.
Remember that BB came to the Giants, and had to motivate some linebackers every day on a team that was terrible at first. Lawrence Taylor was a lazy POS Monday through Saturday, Harry Carson had a bad attitude because nobody else took his job as serious as he did. Pepper Johnson needed to be told often to play the run first. (All anecdotes courtesy of The Education of a Coach) And Belichick didn't have 1/10th the credibility he has now...he was a first time co-ordinator with little on his resume.
If Belichick, Pees, Patricia, and Pepper can get through to this kid, he could be the steal of the draft.