http://www.bloggingtheboys.com/2013...th-the-cowboys-offense-explained-in-two-plays
"Ok, so you don't run the ball, and you don't use your best weapon when you have an open opportunity to audible to him on a quick slant, hitch, or whatever. You run the play as called. Then it falls on your quarterback to make the right throw. Tony Romo instead chose the worst of all options."
It may have been he worst option, but Williams was behind the teeth of the defense. The only thing that was the problem was Romo's throw being a little behind him. So again, if Williams is the progression, and he is open, why wouldn't Romo throw it to him? Additionally, T Williams is ALSO single-covered, meaning they got the match-up they wanted on single coverage for T Will.
Further, Romo can't simply audible into any play he wants. He has a set of plays to audible from. Why would he audible out of single coverage to go to Dez, in single coverage?
Again, all of this analysis is predicated on Romo not being dictated by progressions.
Additionally, there is a concepy of rhythm. An offense has to work to establish some sort of rhythm for it's QB, so that when he finally gets an opening, he won't have his timing off... Our offense is a mess...