Underhill article on why the Saints O is so bleh

I don't think our offense is conducive to using a lot of motion on passing plays, which is why we use motion a lot on running plays but not on passing plays. Carr wants to do his hard count, get a read on the defense, and make his adjustments when passing. So motion becomes a tell for running the ball, and Carr making his adjustments with no motion becomes a tell for passing the ball. That's probably a bigger impact on our performance than the decision to use motion.

Carr did not like having to run the play as called in Vegas, and I posted an article in the past with Rodgers stating he has the same preference (get set, read the defense, adjust, attack). These other offenses are using motion right after getting set and then snapping the ball, with a "can" option for the Shanahan tree offenses if they get a specific look when lining up. Otherwise, it's set, motion, snap, throw.

The QB's in these offenses are also trusting the concepts, going through their progressions, and getting rid of the ball quickly. In Carr's defense, he has no idea from snap to snap whether a DT will be charging through untouched, and that can throw your timing and confidence off.