Kimbo a hulking, heavy-handed monster of a man. Which makes him too ponderous to be effective in boxing. It's just not suited for him plain and simple.

I have a feeling that he is short-winded as well. A trainer might take some muscle of him and give him some moxie, but I think if you lose the girth you lose the man. Kimbo is that big for a reason. His size his a security blanket. It's his identity.

Also, the beard would have to stay that is a Kimbo Slice trademark.