It may not be my favorite offensive coordinator who is to blame
This from Ed.B. of the P-G in his online chat today
Mike Tomlin said something interesting today that we all should have picked up on. He said many times the QB is given an option of plays and he calls them at the line. Maybe he's calling the wrong ones at times, and not BA. I wrote today that many of the run plays that were called were not the ones they practiced last week.
Given my view of Arians, i could see Arians anonymously telling Ed.B. that the running plays were not what was practiced and throwing Ben under the bus.