I agree with you on all that. I think the bad coaching is the primary reason for the regression. I also agree that we lack talent in certain spots.It’s a combination of bad coaching, injuries, and a lack of talent at certain spots.
You can’t overcome all 3 of those things. That’s why the team looks so bad.
For example: We start out the game on defense. Defense looks good the first two plays. Gang tackling, look fast. We put FSU in 3rd and long, a clear passing situation. Flagg is still in the game and is asked to cover downfield. Why? It's been a mistake all season. Why not bring in another safety or linebacker that's faster/better in coverage. Flagg gets a PI and gives them first down. Couple plays later, touchdown.
I'm not saying we are winning this game if somebody else in in on that play, but maybe we aren't getting our asses kicked as bad. That first down due to penalty seemed to take all the fire out of the defense and changed the game.