I guess that depends on your meaning of reckless. Sure, he's put his head down at the goal line to try and push through for a TD. Sure, he's scrambled for extra yards and ran sideways instead of going down. But I can't think of a play in open space where he was hit hard enough where I said to myself, "Why Carson?" He's athletic and uses that to his advantage. His body will tell him when he can't do it any more. And until then, I think he should continue playing the way has. Like I said, his knee injury was a fluke.