Gonzalez wasn't traded with him, if I am not mistaken he was in the first deal, including Brandon Lyon, who failed his physical, nixing the trade. I'm pretty sure.
But, yes, Freddy Sanchez is good. So are Mark Teixiera, Roger Clemens and Jeff Bagwell. But we got Tek and Lowe for Heathcliff Slocumb. It's all a crapshoot, nothing you can do about it now.