I'd say it differently, numbers....

If you're trying to shorten the game/pound the rock/control the clock... THEN play calling is execution and all that you note. This was Hat's downfall at the end when the defense faltered. He couldn't execute any better on offense (60 points and 500 yards) but the defense couldn't make a stop

If you are taking what the defense gives you and they are giving you the deep ball (as an example, and essentially what WE do a lot of) then they are giving you the lower percentage play and execution doesn't have to be as exact. You can hit it just once every 3 downs or so and 'win'. If you can threaten that and then come underneath (early on, we did a roll out to a single wide-out running a post/corner... and then threw to a drag route underneath which was a HOME RUN play to the TE that we could have run all day long.) and if they cover that, the QB (assuming he can run) takes off.... and now you throw in the option to 'give' the ball to the fake going the other way... THEN you have an offense... If they adjust by keeping a safety back and letting the corner stay on the underneath route, you adjust by running a post to the middle of the field.... and if they adjust to that, you fake the run and then rather than boot back, you simply stop and pop to the same side as the fake.

Yes, that is execution as well, I get it... but my point is that 'perfect' execution is a requirement of 'pound the rock'. Fumbles, dropped passes, missed blocks, reads or throws, penalties... all KILL that offense.... not to mention the defense.