I don't think anyone is that confident about this game. Everything I've been reading seems to be how we're all scared to death about this one. Sure a lot of us are predicting a win but I think that's more optimism and hope than overconfidence. Its going to be a hard fought game and very close, I think the Bills win it in the end 26-23.
By the way, as someone else said, it doesn't matter what we think of this game, only what the players think and I bet they are taking this very seriously. It seems thats what Mularkey does best, keeping this team focused.