In my view we've handled the various injuries on defense surprisingly well, with good depth play from Reed, Flowers and Neal over the last few weeks and an important trade for Dunlap. We haven't weathered things on offense as well, but remember that Chad Wheeler was playing as a 4th string RT and when you get that deep into a position then everybody struggles.
One thing to consider is that we clearly want Carson and Dissly available for the playoffs this season, and went to great lengths to bring in Hyde and Olsen to keep their snap counts lower. I don't necessarily agree that the coaching staff overlooked this opponent but I do think it is very clear they have made a deliberate choice to keep looking at the bigger picture over the last two weeks in particular. That could backfire spectacularly if we miss the playoffs, but if we do make them then I suspect there will be a huge change in personnel usage and Carson will get 30+ touches if he's averaging 5 YPC in a game.