Preseason does count for evaluating your starters, as you said, but there are a lot of things to take into consideration and a limited amount of things you can learn because of that. The defense, for example, did not look too hot but that was because, as Rex said, he was trying to evaluate Darby and left him on an island where he got burned. We learned that our QB's can throw the ball well and make plays, but against a defense that is learning a new system and couldn't cover anyone for their lives. The Steelers defense that we saw is completely different from what we'll see from the Patriots or the Dolphins.