I would argue that we have played every bit as tough a schedule as Auburn has, with a very young defense for the most part, and our defensive stats are better than AU's stats. No one will debate that AU has a stout DL, but their LB's and secondary to me are not nearly as good as Kentucky's defense, and look how we moved the ball on them.
As for our defense, again, they don't have a KJohnson type RB this year, and don't have nearly as good of an OL as they had last year. Stidham can do some damage BUT if we bring the heat on him, like we did in the SEC title game, he will not have much success. We have to trust that our secondary can handle their WR's and attack that offense.