Need Case Book Reference

[nvfoa15]

I agree with the IS administration.

With regard to the IP: Case book page 73 Comment 8:

"If a substitute enter the field during a down and hinders an opponent, influences the play or touches the ball, it is illegal participation. The spot of the foul is where the illegal participation took place. The 15-yard penalty is enforced under the all-but-one principle (9-6-3)."

Thus it would appear that the IP is treated different than the IS penalty. Therefore, in your situation, it would remain A's ball after enforcement. (Enforce from the end of A's run.) There is no case book play in the 2004 edition that decsribes your proposed situation.