Appleby is talented . . . not sure how good of a fit he'd be here, though. That's something I wouldn't want to speculate on.
Based on what we know, I kinda like both Austin King (redshirted true freshman this year) and Danny Cameron, who played for a cup of coffee during the Penn State game and looked OK for as few snaps as he likely got in practice. Some here have said that King's arm isn't a BiG level arm, though, and it's pretty clear that unless something happens over the off season that Diamont's arm isn't that strong. But King was listed as a dual-threat QB coming out of high school, and Diamont can run. So it may be that IU can realize on the read option better than with Nate, to help balance the lack of a pro style arm.
There's also a 6'5" kid out of Cincy coming in as a freshman next year. We won't know how ready he'll be until he gets some reps.
And then there are the jucos . . . plus Eason may decommit from UGA with Richt's departure . . . .