Agree on Sorrell. He's going to be the primary edge rusher moving forward. Ovie is being asked to read-pop, glance, spy, etc more often than he's directly rushing, which is fine for his skill set. I can see guys like Burke, Walton, and Gullette being used the same way depending on how they develop. I think we have edges on our roster, but that's not saying that we can't grab the right guy from the portal.
You aren't wrong. But Murphy and Broughton are rotating in often without noticeable drop off and should be good next year. It's that the next crop of DT2s are redshirting, so only the coaches know how that's going. Collins is solid depth even if he's not the superstar we want him to be.
I'd be prioritizing a portal LB. We are losing a lot, and there's not much depth there to begin with. I don't think a 5* freshmen LB fully solves the issue, either.
DB is another spot where the backups drop off quite a bit from starters. We have young talent there, but they've been tested and failed quite a bit this year.