There's a reason Prescott is getting sacked 4-5 times a game on the road and 3 times or less at home, there's a reason basically the entire offense called out "communication" on the road as a major source of the struggles last week, and I'm guessing not having Frederick is a big part of that.
Prescott and the offensive coaches could certainly be doing more as well but I'm guessing if Frederick were around the OL would look much better, even with Smith not being what he once was, with Collins being maddeningly inconsistent and with Williams being light in the ass.