There were times when the offensive line was actually pretty darn physical. Williams and Hunt are physical players. It's there to some degree, but needs to get better.Does anyone seriously believe that Grier will magically be able to build an above-average tough, physical o-line this off-season after years and years of being woefully inept when it comes to the o-line? IMO, it's going to be just like last year; Grier and McDaniel are going to say that they're not concerned with the o-line. They probably think that once the injured guys are better, everything will be just fine.
As for the running game, McDaniel has a habit of going away from it even when it's working because he loves the big passing plays more, so I expect him to continue that. IOW, I have no faith in Grier or McDaniel to fix the o-line and improve the running game.
My personal favorite drives this year were the end of the Jets game where, with mostly backups, the Dolphins ran the ball down the Jets throats. Against Denver, Miami also had an all run drive.
To your point, it's a matter of committing to it more. I hope McDaniel will, but I'm also not sure.