The problem with Kaman is the price is going to be way too high for him. He is already massively overpaid, and it isn't worth losing a lot of pieces to get him.
He is a decent rebounder, and really that's about it. He is very turnover prone (bad hands), which limits his usefulness, and he really isn't that good of a scorer. All of his shooting percentages are worryingly low, especially close to the basket.
The rebounding and size is nice, but his two biggest weaknesses are exactly in the areas that we need a center to excel in, inside scoring and not losing the ball.
He would be a slight upgrade from JO, but he isn't worth the asking price.
(Besides, he was only an All-Star because he put up numbers on a Edited. Profanity and masked profanity are against forum rules and may result in discipline.ty team. He was never terribly good)