I agree that it's a "why not" type of move. Even for both teams, although I can't think of a FA Center this summer who the Lakers could go after with all that money. Similarly, I know they're not drafting one. "Everyone will have cap room" is an important thought to note, but with this move the Lakers would have at least $40mil to throw around without Bryant and Hibbert.
Meanwhile, Lee is out of the rotation and not squeaking in anytime soon if you ask me. Perhaps Hibbert would hurt the other players on the floor just as much as Lee but it's a "why not" after all. Try it and if it doesn't work let him walk at the end of the year, least we got to take a couple months look at him.