While I do not have exact stats to back this up at this very moment, I think it should be considered that while Olivo's five-tool potential was given up for Garcia, his loss may actually benefit the overall pitching staff.
I present a hypthetical example (see if it sounds familiar):
Jon Garland/Neal Cotts/Schoney on the mound and/or Olivo behind the plate in a game situation, hitters count, and they throw a changeup. Eveyone knows they will throw the changeup, and everyone knows its going to get clobbered. You know it, Farmer knows it, Hawk knows it, especially the hitter knows it. Afterwards, everyone bemoans the horrible pitch selection. I think of Garland's last few starts where he gives up a cookie in the 7th inning.
Not a conspiracy theory, just something to be considered.
Im not on the Davis bandwagon or anything, but game-calling was brought to everyone's attention as a factor in Olivo's easy departure.
Loaiza and MB have both said on the record that one of the reasons they pitch so quickly is because they trust Sandy. Whatever he puts down, they can throw with confidence because they trust his judgement.
More to come, I dont know if stats are possible, but just wanted to put this one out there.
-ZeroHour