How much of this, though, is just us figuring out the new engine? I, for one, am still making material changes game to game. Not because I am planning for an opponent but because I am experimenting with what should be basics (throwing long vs. short, TE set to block or not, line vs. cover, blitzing, etc.)
I would expect that a lot of this will sort itself out over a couple of seasons as we learn the new game.