Honestly don't see the defense taking much of, if any, step back at all now.
Koerner will be missed for sure, but X is a special talent that will factor in right away.
ZVV was damn good, but only had 5.5 of our 31 sacks, and now guys like Van Ness, Craig, Llewellyn, Hurkett (thought he was playing very well before he got hurt), and Reames will be another year older and stronger. Not to mention Evans, Shannon (super underrated IMO), Lee, Waggoner (probably moves inside now?), and Pittman, + Graves and Crawford. DL room is loaded rn.
LBs the exact same, still stacked.