illegal shift or illegal motion

[mbyron]

Originally Posted by kdf5

Take is easy Walt. I posted Bob's article and you can read it for yourself.

I read Bob's article, and it makes sense. I defer.

kdf5, your explanation needs work. What I found persuasive in Bob's piece was the idea that motion does not become a shift until at least one of the players sets. So if neither of two players moving sets before the snap, it's not a shift. If one (or both) of them sets, it's now a shift.

I was also intrigued by the rarely called illegal shifts involving the QB coming up under center while the motion man is moving. Good stuff!