As far as what the Mets gave up, Deolis Guerra has the potential to become a star, but that's OK. Unless you expect him to become the best pitcher in the game, you have to agree to let him go in this kind of trade. As for Carlos Gomez, as I've said bfore, at his best, he duplicates/overlaps the skill of two Mets already signed long-term, Jose Reyes, and Carlos Beltran, so he was expendable. Phil Humber and/or Kevin Mulvey could develop into middle of the rotation starters, or not. This was a deal the Mets had to make.
So, assuming Santana gets signed, does that put the Mets in position to win the division ? Well, they would have to be considered favorites. Still, I'd like to see an addition or two. A solid righthanded hitting outfielder to share time with Ryan Church or spell Moises Alou on occasion might be nice. And maybe another bullpen arm, in case Sanchez is not ready to open the season. But the outlook seems a lot brighter today. So, congratulations to Omar Minaya for standing his ground, putting forth his best offer, and not succumbing to pressure from the fans and media to throw another good player in to hasten the deal.