[Mack10]

Question from a first-year officiall: A is winning by 1 pt with about 45 seconds left, and has a 4th down deep in their own territory. Punt team runs on to the field, but nobody comes off and A now has 13-14 people just standing around on the field after the ready has been given. Maybe 7 in the huddle, and an equal number between the huddle and the numbers. The intent seems to be to run down the clock and take a delay of game before punting.

Does this become a subsitution infraction sometime before the 25 seconds is up?