Their schedule is ranked #38 by the conventional methodology and #43 by Massey. That's not that hard for a program of their (former) caliber.
I wasn't losing my mind over the losses to Mizzou and Kentucky. Georgia, Alabama, and Arkansas just aren't that good, though.
We're talking Massey ratings of 68, 113, and 48, respectively. The best of those teams is Arkansas and Arkansas has a loss to Pitt this season. Pitt is terrible.
The fact that games like this qualify as "relatively difficult" for Tennessee is a sign of how far they've fallen.