In the wake of the team’s second preseason game, 49ers coach Mike Nolan says that no decisions have been made as to the identity of the team’s starting quarterback for the 2008 regular season.

“[T]here’s been no decision,” Nolan said Sunday during a media conference call.  “ As soon as we do, I’ll offer it, but right now we don’t.  As soon as we watch the film, grade it, and our guys are getting more involved in Chicago and we’ll go from there.  No decisions.  Nothing to announce.”

The signs are pointing to J.T. O’Sullivan, who pulled himself into the battle a couple of weeks ago and has started both preseason games.  The other candidates are Alex Smith and Shaun Hill.

“As I’ve said all along,” Nolan said, “I think all three of them are capable of doing it.  I think [O’Sullivan] continues to do a good job.  He had a couple opportunities where he could’ve tried to make something out of nothing, and he chose to — and a time or two he did, and it was good play.  It was — the other times, whether he scrambled, just threw it away, or whatever he did, but I thought his decision-making was very good on it.  With every game, obviously, you get a better feel for somebody.  I thought he played well.”