I understand where you are coming from - but dominant running teams don't have a track record of winning the super bowl in the last 25 years. - Whats not a fallacy is having a dominant run defense.
The nfl playoffs are filled with teams that don't allow rushing yards - so you might be able to win a game or two that way- but eventually your Qb and pass game are going to have to get it done.
I've been discussing this with
@Merlin on another thread, you should read those posts. I don't expect McVay to turn into a run-first guy, nor would I even want him too. But I provided a couple examples over there of instances where teams have married power running with a dynamic passing attack, and that I think is something that can be done.
There is no disagreement between us on you last point, re: you need a QB and a pass game that can get it done in playoff crunch time. Following the Rams in the 70's taught me that. But observing teams like the Redskins under Joe Gibbs (his first run with them) also taught me that you can combine power running and dynamic passing in the same offense and have success. If you look at the QB's with which he won three Super Bowls (none of whom is as good as our current QB1), that only underscores the point.