Re: Reggie Sanders....
They would save money by doing the deal, and add some sort of living & breathing being (debatable) in Cormier/Stanton for Sanders.
It would be trading an excess for something you lack. I think at this point the Royals just want to win more games so they aren't a complete laughing stock. Explains the trades for LaRue & Perez, signing of Gruz, Sanders, Meche, and Dotel.
I think trading Stanton/Cormier actually helps us out.