My bigger concern by far is DT. We have to keep in mind that when the LBs struggle next season, it won't be just on them, but the drop-off at tackle.
Lattimore is going to have to take a big step forward after a forgetful season. Bazata and Hulett will be gone. Rieff is a workhorse but undersized. Matt Nelson doesn't have a quick-twitch muscle in his body, and has an overly high center of gravity for inside. Garret Jansen? Nixon may or may not end up here. Linderbaum and Shannon will be true freshman.
My guess is we'll see Eppy moved inside a lot next season, a la, Ballard. It may not be the best way to take advantage of his skill set but the staff probably doesn't have much choice. Brincks probably will be moved inside as well, but he doesn't move much better than Nelson.
The ideal scenario would be a big step up from Lattimore, off-season weight and strength gains from Reiff, and Nixon actually enrolling and keeping his academics in order. Throw in some rotational mixes with Epenesa, and it could work, but the stars will have to align.