As always in these silly debates, it's about matchups vs. sabermatricians. Roenicke thinks that the difference between Kotsay and Gomez' hitting prowess VS TIM STAUFFER (not vs some average MLB pitcher..not even vs. the average right handed pitcher, but likely based on hours of observing both players hit against guys of his ilk--junkballing command-centric right handers) brings a greater advantage to the team to win the current game than the difference between Gomez and Kotsay's defense. In this case, I don't think there is much of a difference between the two options. Another thing to keep in mind is the human element behind all of this. We have no idea what is going on behind the scenes. Perhaps RR has been harping on Gomez about some aspect of his game whether it is preperation, warm-ups, batting cage work, coming late to a meeting, etc. etc. etc. and has been warning him that he will see the bench if he isn't up to snuff in one of these areas. He's a young guy who is obviously still maturing, so this seems like it could be the case. It's one game. His other starts recently were for Hart who looked terrible coming of an entire off-season layoff, so giving him a couple days rest seems to make sense too.