I'm not saying trade Battier for Kobe, HAHA! Why are you going to extremes? Houston isn't good enough to benefit from a role player like Battier, but the Lakers are. Put Bowen on Houston and he won't bring them a championship, but within Pop's scheme, surrounded by talent, he's an indispensable piece.
Same for Battier with the Lakers. I don't feel the same way about Tracy because he doesn't hustle and defend in the way that great role players do, and he's not even a great foul shooter. The Lakers have all the contested pull up jumpers they need.
The Lakers are good enough offensively that they only need to lock a team down for one quarter to beat them handily.