#1: No game-proven impact players on offense - somebody will step up but we don't know who. I'm counting on Dorsett to be one of them.
#2: No one knows for sure what is going on with Seantrel
#3: Where will our pass rush come from?
Open up more? We have a new starting QB, new starting wide receivers, and new starting running back combined with one of the most underperforming units of last year (OL) on offense.
The biggest area of concern, IMO, is the entire defense. We shortened games last year by running the ball, limiting turnovers with safe passes, etc... but the defense was generally awful.
The NCAA
..According to this thread, we should be concerned about the entire team. Good to know.