IMHO, the O-Line being inferior isn't new to this season. And keep in mind, we don't necessarily face elite pass rushers week in and week out. The two best DLmen in the ACC both play for Clemson, and we avoid them 5 out of every 6 years. Settle is pretty good, though, at VT and y'all saw how much he dominated our OL.
My point being, if we played Clemson every year and if we had a permanent SEC rival like GT, Clemson, FSU do, our offensive line would look even worse! The SEC is down overall, but they're still strong in the defensive trenches.
To me, the OL play just is not cutting it. And I don't think it's as simple as saying "spread offense linemen are more finesse." It's time for a change at OL coach. Kap has been with Fedora for forever though, so I'm interested to see if it happens.