Narron has become very vocal in the last few week of his defense, look the stories up if you don't believe me. Clayton may or may not get the majority of starts at SS, he is a solid SS Lopez is a liability that is a upgrade. Aurilla and Freel both play SS very well, and as I said earlier Phillips is a very good SS, which is his natural position.
I dont believe this is the final deal and more than likely it is to set up something else.
But barring that I would be willing to bet they will have a better record after the trade than before.