It's the obvious really. He's fat and it affects his mobility. He's garbage at picking up balls near his feet or plays where he's coming in on a ball because he's tripping over himself all the time, and that's a factor of his weight. The arm is an easy plus, and he looks like he has the talent/ability and instincts to be average there, but as it currently stands he's going to continue to be a liability out there as long as he's out of shape.