Lopez has grown on me as a player over the course of his career. Needs to rebound better, and he will never be the defensive force that Howard can be, but he is an excellent offensive player and I can't see why Williams can't make him even better.
Having Humphries around for his toughness would be nice, but with Wallace and Evans on the team, they have some enforcers, and Johnson should spread things out a bit more and allow Williams and Lopez to do some nice things together.
Not making the trade also allows you to keep Brooks.
Still a dangerous team, assuming that Lopez has no lingering effects from his injury.
No man is happy without a delusion of some kind. Delusions are as necessary to our happiness as realities- C.N. Bovee