7-2-1 currently says "After the ball has been marked ready for play, each player of A who participated in the previous down and each substitute for A must have been, momentarily, between the 9 yard marks, before the snap."
With the 40 second clock, we will no longer "mark the ball ready for play". This might just be semantics, but a change to the wording here would be helpful. Or will we say that the new "dead ball signal" is now the equivalent of the RFP?