There's a difference between areas of opportunity vs weaknesses. Some see a weakness as an area there isn't a bona-fide playmaker at. To me it's more about do you not have guys that can competitively play at a position and are a continued liability?
Offensively I don't think there's a player you can say is a true weakness. Moore just has to stick to the gameplan and not over think it.
Defensively I get the argument around DT and CB3. If Hankins gets back that's a nice boost to DT and I would say we have a serviceable group, but need to rotate a lot to keep those guys fresh. I would slide DLAW to DT some more and give more opportunities to get more des on the field. Lend a strength to help a potential weakness.
At corner, I don't see how CB3 isn't considered a weakness, but that's probably expected when you lose 2 of your top 3 corners. Joseph, Wright, or Mullen are going to have to step up.