How many snaps had Peterman taken before his finger broke? How many snaps did he take after he broke it? How many bad plays, turnovers before the injury; and especially, how many bad plays after?
Yes, first start jitters against one of the top NCAA defenses and against Florida in the Swamp, then ... broken bone. I can't say Peterman did anything to impress me, quite the contrary. The most unimpressive thing he did was to try to continue to play with that kind of injury. Of course he wanted to play.
As for Dobbs and Ferguson, very few 18 year old freshman can play D1 fb against pretty much full grown men who are 21 to 23 years old with 2 or 3 years in the weight room. There's a few that can, but not many, and the likelyhood of injury is high. It's the very reason all those years ago the college programs instituted had the Freshman "B-Team" and the Soph, Jr, Sr "Varsity" teams. Scholly limits did away with that.
But exceptional athletes should be able to jump right in once they learn the system.
How well have Dobbs or Ferguson absorbed CBJ's offense? How well do they read SEC defenses? Which one has that exceptional 'natural' talent or works harder than anyone else? Only time will tell. There's no gazing ball to peer into and devine the future. As for me, I like Dobbs only because I think he may have the better head on his shoulders but that don't mean it'll translate to the field.