The way he talked about how hard it would be not seeing Newton, Spencer and the other graduating players around the locker room anymore... mentally, Clingan may not have shifted into the mindset that he's leaving yet. We'll see if that means anything. Most of us would advise him to leave and take the bag, but again, it's not our place to tell him how to live his life. If he maintains college eligibility, he's entitled to use it if he wants to. What's Hurley gonna do, kick him off the team? That wouldn't be fair. You'd be forcing Donovan to do what you would do in that situation, partly because you think it makes your program look more attractive to spit out lottery picks as soon as they're viable.
There's also a chance that he's unsure about his physical stamina right now. He did have that foot injury.