Appreciate the class comment, being a state fan builds character to say the least.
Our released depth chart -
http://ncstate.rivals.com/cdepthtext.asp
-To answer a & b, as you can see from the depth chart, We hope that our Oline is finally where we expect it to be as a Tom O'Brian coached team. At the very least, they are all upperclassmen and have shown some promise when all healthy in the past.
-c. Your wide receivers do scare me, but for those thinking we are relying on Amerson to shut down everyone, that is not the case. We have an experienced secondary and while they will have to adjust to your athleticism, they have all been around long enough to accept and understand our "bend dont break" defensive scheme. Designed to sort of allow short gains but prevent the homerun plays. In theory, haha.
-d. Dont know too much about Bray, except what I've read here. He seems very talented as he's been invited to some of the same camps that our 3000 yard first year QB has been invited to this offseason. We do have some experience stopping the option, since we play Georgia Tech every year and they probably average 50 passing yards a game.
One thing I notice about most of your points are they relate to new players that did not play for the Vols last year for one reason or another. Even good players take time to adjust. Somewhat related; our basketball team that made the sweet sixteen this past year, had the exact same players on it that it did the previous two. Two years ago we only won 15 games. There's no substitute for experience within the system. Oh yea, and coaching (new coach this past year). Seems that some of your fans question your coaches ability.
I think it's going to be close. While you're favored by 6-7 in the betting lines, we are ranked higher in some preseason ranking sites. I'm sure the reason for this is the vols have a lot of changes this year. It's fun to be optimistic, but changes can go both ways.