The other issue that repeatedly drove me nuts was the unwillingness (saying "stubborn" is an understatement), to adjust formations to provide Benhart with passing blocking support on obvious passing downs. At this point in the season, it is foolhardy for a playcaller to assume he's got an 85% chance of holding his block. Game experience has shown this to be more like 10%-15%. So acknowledging that weakness and adjusting for it was simple common sense. I should add, that if even once they'd run a draw play into the B-Gap on Benhart's side, the OSU Defensive End was usually 5-yards out of position within moments of the snap and it would have burned them badly. Again, something simple that a new OC needs to pick up and act upon.
Just in terms of the "Rahmir to the B-Gap", perhaps not a popular opinion, but since this propensity to repeatedly call the exact same (predictable) plays over-and-over again pre-dates the arrival of Matt Lubick, I have my suspicions this behaviour was initiated higher in the chain-of-command. Based on that, whomever is coming in as the new OC absolutely must be giving playcalling responsibilities with Frost retaining control only over things like "What to do on 4th down". Not sure why, but from where he's standing, Frost is not getting a good feel for what's actually going on, on the field.