It is nice in theory, but a lot of our drives stalled last year when we ran on first down (especially when Elliott got the carry). I would expect that McCarthy wants to get the ball out of Prescott's hands quickly. I am actually good with how much we ran, but the when and how needed to be sharper.
We have been running basically the same formless collection of plays for a while now. If all he is talking about is making things more efficient, great. I anticipate a shorter passing game with fewer plays that take a lot of time to develop.