DE - We have 3 decent (albeit old) NFL starters and a great special teamer
OT - We have a good LT, a young RT who improved a lot last year, a good swing tackle in Nsekhe, and another potentially good RT in Williams if he returns to form somewhat
LB - We have 2 amazing young players, a solid veteran starter and good depth (assuming Vosean doesn't completely suck)
I'd love it if we could add some high upside youth at DE, but I definitely wouldn't consider that a pressing need. We could come away from this draft without a single DE, OT or LB and I'd be completely fine with it.