You're not wrong, but my point wasn't about what else those teams have, just what they're losing.
As for VPI, the biggest QB the had coming in, IMO, was Malik Willis from Roswell HS. Flipped to the War Tigers on New Years weekend. Let's also remember that Evans was VPI's leading rusher this year, so they'll have to develop a true running game. Are they set up for that? Idk.
Your last paragraph is spot on - it is imperative for us to close on DL targets in this class to help alleviate some of the worry around the DL. As I've pointed out in another thread, we only have one right now (Cortez Alston). Plenty of targets out there (9-10 per CPJ on 680 last week) so our work's cut out for us.