I'm not the biggest Rex fan, I but I do get his ground and pound philosophy, and I think this team can win if the coaching staff commits to it.
That's why the play calls you mention drive me crazy about this coaching staff.
If you claim to be a running team, and you spent the picks and acquired players to be a running team, you should call runs in key game situations. And I don't mean Reggie Bush option running plays, I mean Spencer Felton crash the middle running plays.