If it was all about execution then there would be no need for scheming, and thus no reason for preparation nor coaching. The players would only have to suit up and play.
and execute the run game properly.
So the run game wasnt done properly, till they were down by 17 then they remember how to do it properly, but cant because they are behind?
the run moves the ball just as fast as passing , especially if it is all short passing, there is no difference.
they can run out of bounds when they can to stop the clock, and otherwise use hurry up which keeps defense from subbing, and they will get tired.
We are all tired of hearing watch the tape get better, or behind the chains, lol or execute properly !
The execution should be learned in practice, and they have watched enough tape by now , they should be better already.