I don't know about that, honestly.
I like what Grubb is cooking up so far, but we tried almost as hard to establish the run in this game as we did in the famous Wild Card loss to the Cowboys.
Carson rushed 13 for 20, Charbonnet rushed 14 for 27. Mike Davis went 4 for 10 in the Wild Card loss. Penny averaged almost 8 per carry because he sprung a big one, but he only had 4 carries too.
I think the verbiage "establish the run" is an imperfect summation of what most coaches actually mean. Establishing the run is really more about not giving up on the run so that your offense remains multi-faceted.
You always hear defensive coordinators talk about getting opponents down to a one-dimensional offensive attack. A team that gives up on establishing the run willingly goes down to one dimension.
The phrase "establish the run" sounds like a stubborn insistence upon moving the offense in a particular fashion come hell or high water, but I think it's really about making sure you're keeping the defense honest.
Seems like a pretty big difference between 21 rushing attempts and 14 attempts. in a two point game 5 extra rushes into obviously stacked boxes verus throwing those 5 times could have made the difference for sure (2 of the 7 extra runs were 2 point conversions)