I'm assuming the references were to his 'attitude' issues...He's been well documented to be a bit of a prima donna at Cal and has been suspended for conduct detrimental to the team...Kinda one of those guys where when things are good, he's in line but if not, a problem...Not Antonio Bryant problem but problem.
If I'm a GM, I'm maybe more concerned about the fact that he's under 5'10" and 169 lbs...The Steve Smith argument comes to mind but then again, there aren't a lot of Steve Smith's...Or, that he's had a history of thigh/hamstring problems...recurring, mind you.
Cal fans will tell you that when push came to shove in big games, Desean wasn't there so take it for what it's worth.