I got it, my question is answered again. So it is very much ok, in the system to break off from your intended routes and position a wr to run a different route, even though that was not the play design

THANKS AGAIN DRE.
But as a side note that is separate and can be discussed in another forum,
Every play in the NFL is not a the way you described. Montana to clark catch was a total breakdown that does happen, and Brett is the all time interceptions leader for a reason. Those are legit points. But a QB will catch a streaking player or another open guy during his progressions OR happen to see him unexpectedly. The common bond between them is, the QB knows where the guy is. THe guy is unexpectedly wide open due to a coverage breakdown or defensive scheme that was not expected. In no way does the wr just say, "
YO, that spot over there is wide open, i am going there, screw the route"
THe all players must run there pass routes even if they see it is into coverage because their route is working together with another route that is working with another and is what is formulating that play. The QB knows where everyone is going to be (supposed to be) and that is how he decides who is getting the ball. In general, on the snap, look the safety, check the LB's, make your pass to the guy who is open based on those reads.
Thats what is good about TO not in dallas. Romo can just make his read and pass to the open guy. He does not have to break away from the designed intended 1st option to appease "the player". He does not have to try and force it to "the player" even though he knows the coverage rolled his way, thereby, leaving someone else open elswhere, or having time to find some else without the extra dude rushing him.
Yeah man, football is thinking. its great.
ENJOY THE DAY DRE! (see, i can rhyme too

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CAROLINA BABY!!!! breakfast is on me today
Scott