The most common reason to put a WR in motion is to create mismatches. A QB usually has a pretty good idea about whether a defense is in man or zone by the time he comes to the line, so creating motion for the sole purpose of detecting the defensive stance is secondary. Sometimes a QB like Manning or Brees can see that putting his WR in motion will cause him to be covered by a LB or a SS, which of course will make his eyes light up. (How many times did you see Jerry Rice end up being covered by a safety? More than a few. His torching of Bill Bates in 1995 after going in motion stands out to me). So anyone who thinks that WR motion is some sort of super-secret decoder ring for the defense they are facing doesn't know what he/she is talking about.
I don't normally reply to you, but since you actually posted something semi intelligent in response to a topic I am involved in mixed in with your usual veiled insults, I am going to. Rice in motion, Bates ends up covering. What is your immediate analysis of the Defense we were in?
If you said Zone, you win a cookie.
If we had been in Man Coverage what is your immediate analysis of what would have happened? If you said the CB assigned to cover Rice man to man would have followed him in motion, two cookies.
The idea that the motion does not light up the QBs eyes is ridiculous. Would I like to see Dez on a LB or a S? Sure. In that sense there is an advantage for the Receiver to go in motion. But said advantage is absolutely predicated upon what I already described of the Defense being in Zone and not Man Coverage. Having Deion Sanders go with Rice would have negated his advantage of S or LB on him. We were therefore not in Man Coverage.
Now, to everyone else who is wondering about this presumed advantage, ask yourselves this. If a man in motion is an advantage to the Offense, why isn't there a man in motion on every single play, for every single team? Do you really think teams would not want this advantage every single time? That's kind of silly isn't it?
In the CFL or Arena Leagues where a man can be moving forward, there is a huge advantage, and you probably do see it on every single play. Not in the NFL. And there is nothing in the way of statistics produced when I asked for them that suggests the man in motion becomes a more lethal target for the QB. Why wouldn't there be something suggesting this if it so obviously is?
I suppose technically there is an advantage to the man in motion even if the coverage is Man. Otherwise the NFL would not limit motion to only one man. Sending someone in Motion is designed to mix things up, give the QB a read, and if the other team is in Zone it possibly can be attacked. This of course presumes the Zone does not provide a double coverage doesn't it? Of course it does. Two men covering someone is still less likely a target than man coverage even if the 2 men are a LB and a S.
Last thing, when in doubt Google it. Ask Google why teams send someone in motion. Just for kicks, this is what Wikipedia has, and yes I know how reliable they are or aren't in people's minds.
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In all forms of football, only players in the backfield and not on the
line of scrimmage may be in motion at the time of the snap. Prior to starting the motion, all players on the offensive side must be in a set
formation for a minimum of one
second.
In most versions of
American football, only one player may be in motion at one time, and the player must not move toward the line of scrimmage in his motion (in other words, he can only move laterally or backward). In no situation may the moving player begin on the line of scrimmage when he moves (in other words, offensive linemen are prohibited from motion prior to the snap). Any player who shifts from a lineman position to a back position must set in position at least five yards behind the line of scrimmage before going into motion.
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First the obvious error is that a player on the LOS can go in motion once he backs up, and someone else covers the Tackle. Always 7 on the LOS. But it is correct in saying he can not leave the LOS and go in motion and the Tackle gets covered while he is in motion. Why not? Because then that is 2 men in motion and that is illegal procedure.
Nowhere did it say teams send a man in motion to create a mismatch advantage.