If Miles is calling the plays, then?????

You answered your own question. We are great on defense because Les doesn't touch or invade the chief's space. Les has too much influence on the O, which is why we suck at it.

Les was a hell of a playcaller in the nc game.

A friend works the sidelines as an official and he told me last year during the Florida game Les came over to talk to Chavis. My friend couldn't hear Les but Chavis looked at Les and barked back and said "I'M TRYING TO WIN THIS GODDAMN GAME"! So it's obvious Les can't frick with the D.

wanna know how it goes w/ the playcalling? crowton is calling the plays that miles limits him to calling... for example say we're on the 10 yard line about to score and it's 2nd and 5... we're running b/c that's what Big 10 football (Miles' background) is all about...

Crowton might call the play, but Miles gets the say whether he wants to air it out, run an option, keep it on the ground, do a screen, etc....

pretty much everything i've seen out of the playcalling this season is straightaway ol' Big 10, run it twice, throw on third football... now i ask you, who has a background in the Big 10? then i'll ask, who do you now KNOW calls the plays?

the evidence is all there...

Think Chavis would be a good choice for head coach?

Let's just hope that Miles does not interfere with defensive play calling.

This is just my opinion,not worth much not substantiated by any sort of evidence,but i feel that Les Miles has a great deal of control over the Offense and he does not want to let go of Crowton because GC has a akind of personality that allows Les to dictate terms and get away with it.
And one of the obvious issues(my thought based on what i have seen) with Gary is his shortcomings in developing a QB.
Other than that i think X's and O's are not Gary's issues it is the Headcoach who stiffles his play calling.