Shift/Motion Question

[seanireland]

Originally posted by Bob M.


FED: NF 2-37: "A shift is the action of one or more offensive players who, after a huddle or after taking set positions, move to a new set position before the ensuing snap."

I am curious. KEFerrell said, "A comes out of the huddle and sets for one second. A2 and A3 go in motion ... ///A2 comes set for a second///, however A3 does not, continues his motion until the ball is snapped."

and

Case Book says p.21 2.37 SITUATION C: After A has been set for more than one second, back A1 goes in motion. While A1 is in motion, back A2 takes one step forward and then resets. A1 is still in motion when the ball is snapped two seconds after A2 reset. RULING: ILLEGAL SHIFT. A2's movement was a shift and the failure of the entire team to set for at least one second after the shift and before the snap is a foul at the snap. (7-2-6)

To me, KEFerrell's back A2 is the same as the A2 guy in the SITUATION. Didn't A2 shift in both scenarios?
KEFerrell's A3 is the same as the A1 guy in the SITUATION (i.e. in motion at the snap).

How is KEFerrell's situation NOT an illegal shift?