Substitution issue.

[Bob M.]

REPLY: I think we all realize that a key point is how long were B12 and B13 on the field--not attempting to leave--after their substitutes reported into the huddle/formation. If it was more than a few seconds, it's a DBF for illegal sustitution. If B12 started toward his sideline as soon as he knew he was replaced, let him go. If he gets there before the snap, no problem. If he's still on the field, but heading toward his team box when the snap occurs, it's an illegal substitution simultaneous with the snap. The problem child is B13. He's confused as to whether he belongs out there or not. If he's been on the field for more than a few seconds, I'm killing it. We're not responsible for his confusion. Likewise, if the snap is imminent and B13 hasn't decided if he's "fish or fowl" I'm going to blow it dead. But if he's moving toward the sideline, I'll hold the whistle and at worst we'll have a live-ball IS foul simultaneous with the snap.