The Specials Teams aren't worth being concerned about until we have people playing that will actually be on the 53 man roster. Remember this is just a hodgepodge of guys most of whom will be unemployed in 3 weeks. I think STs will be OK if not great. IMO a dynamic guy like Dunn could really lift the entire unit.
I agree about the OL. Work in progress! They will get better as the season goes on especially with run blocking but pass protection is worrisome because that is the same no matter what the new blocking scheme calls for.