I mean first of all IMO, we need to get a good DC. We need to find an identity and establish a physicality on defense. On the outside, you have Micah, Kneeland, Golston, and Sam Williams coming off IR. They will likely resign Parsons, the next matter I would try to fix is who is the pass rusher on the other side of him. We have been trying to establish a 1/2 punch as DE for years. Ware/Spencer, Gregory/Lawrence, Parsons/Lawrence/Williams. We have to find someone to cause havoc on the other side of Parson. Kneeland reminds me of Tank, a good run defender and occasional pass rusher. Williams still has potential but even last year before he was injured, he was inconsistent and showed signs of needed maturity.
Second, they need to figure out what they are going to do with Osa at DT. If they are bringing him back, they need to address finding an upgrade at the 1 Tech. Smith has improved but they need competition and depth at that spot. They need a big bodied run stuffer. If they dont bring Osa back, they need to find two DT's. They need to established a physical front 4. They need to establish a consistent pass rush so they can alleviate pressure on secondary.
Third, they need to solidify the LB spots. I love Overshown but with his major injury its time to put him to the side and let him heal, and not assume he is going to return back to where he was this year and if he does cool but cant depend on that happening. Marist was a good pick. He has played well, and shown alot of promise. Kendricks has been solid, I would brining him back for cheap. Clark- I liked him but he just kinda fell of the Earth. He was a healthy scratch quite a few times this year. Leaves quite a few holes at LB.
Fourth, the secondary- just needs to get healthy. Diggs needs to rehab and get healthy. Bland needs to stay healthy and get back in the mix. We should resign Lewis for 1 to 2 years. Carson didnt play bad this year but was injured. Hooker and Wilson is solid and Bell needs to get healthy. They have made some plays but lack of pass rush had definitely affected them. They can add some depth but DE, DT, LB are priorities IMO.