I've been slow to react to Clemson falling off because a lot of our fans typically see a negative trend and automatically project that to an imminent collapse.
But this is two OCs, and a new DC later, now. The defense didn't look terrible. They gave up 374 yards to a team whose QB is considered a darkhorse 1st round prospect. The offense, on the other hand, looked pretty neutered. They are missing the playmaker they had in the past. So does Wesco make a difference in the product, or does the product neuter Wesco?
I'm still not ready to say Clemson is doomed and headed for perpetual 8-4 seasons because the way they lost was really fluky with 2 lost fumbles on 1st and goal, 2 missed gimme FGs, a premature slide on 4th down, a tipped INT, etc. The stats from that game don't tell the story of the outcome. But if they can't figure out how to value the football and clean up the OL play, they will certainly continue this step backwards from their heyday.
When does that begin to affect recruiting? It might not be this year, but going forward, and their conference uncertainty, those things are going to start adding up.