To my untrained eye, even when Carpenter was "healthy" (if he ever was as a Seahawk) - he looked EXTREMELY top heavy and disproportionate. The fact that he's the strongest guy on the team is great, but I don't think upper body was ever the issue with that guy. I think he needs to balance his body out a bit better, get some lower body strength, maybe even slim down just a little. But the problem is, all these lower body injuries really affect his ability work out that lower body. I'm afraid it's going to be a vicious cycle with him, and that we'll never get to see how good he can be.
I REALLY hope I am wrong - and I could be, easily. I don't really know what it takes to play OL in the NFL - maybe his body looks just like the team wants it to.