The story that was painted by the OP's story and that philosophy bothers me. If that is believed, he is "the guy" (read: bell cow) and then draft a RB in 2017.
McFadden has never carried the ball more in his career than last year. Yet he is ready to do it again?
If you firmly believe what you say about running backs, and how Murray was used up, how you can support giving McFadden the bigger share of the workload?
We have seen, specifically, with our own eyes, that the only measured success Garrett has had in his seven years was with a back getting the overwhelming majority of the carries to help establish the identity, which in turn only maximizes Romo's effectiveness.
As much as people around here throw up 2014 as a true measuring stick and what the "real Cowboys" are minus the injuries etc., it is funny how they twist that around and ignore how that was produced. I get McFadden a stud running mate and sooner than later, he is getting the lion's share of the workload.
If the idea is to maximize every Romo year we have left, he needs the support of a quality, effective running game to be at the level where he does not feel the need to do everything.
In the few games he played in last year, it was still his game to win or lose. And that is not that fair.