I would probably put Edge and ILB in the same category. Both have one established starter (Judon on edge, Bentley on ILB), and then a collection of guys that are either young or have some other upside, but aren't yet proven on this team. Both could use quality, but given the resources seemingly available, I'm guessing there are more low ticket vet additions to be made and then add high upside talent in the draft.
DT I think is fine. They're three deep there in a rotation of Godchaux, Barmore, and Guy. It's one of those positions where I'd love another stud next to Barmore, but there's at least a solid rotation of NFL players there. I think we're just short of that at Edge and LB.