Haven't seen alot of him, but irregardless I wouldn't want him at Juve. Biting people? Cmon, that's so childish. You can't depend on players like that. They'll get suspended during a crucial part of the season and you'll be fucked. Look at Milan and Balo.
That's football IQ. Not the same thing as intelectual IQ. Player can be a fantastic dribbler, passer, runner and an idiot in every day life. Totti for example.