OK. let's see, we trade a shortstop, who was an excellent defender like Simmons, but batted .271 with 53 rbi of which 45 were not by a home run, for catch who has negative defense numbers, batted .204, with 54 rbi of which 31 were not by home run.
Well at least we do not have to deal with Simmons 92 hit and .223 batting average as Sanchez, 78 hits and .204 are such an improvement and the fact he has double digit negative defense numbers, well who needs defense.