Mike Singletary is keeping quiet on his starting quarterback. He has made a decision but he isn't saying whether Alex Smith or Troy Smith will face the Rams on Sunday. "It's something that I don't really want to announce right now," Singletary said. "You know, in all honesty, in terms of an advantage or whatever, I just think the only real advantage that we could have is to go there and play well. All the other stuff is the cat-and-mouse stuff, but I just think that it's important for us to prepare well this week and get ready to go."