[deecee]

Changing a number in the book is a T. The only player excluded would be the player with blood, or say a ripped jersey or something of the sort that damages the jersey.

So the coach lets the sub in by using a different subs jersey so you change that number. Then he wants that new sub without a jersey in so you change that number. What happens when the number recycles onto the third different player, maybe the fourth due to subbing and jersey swapping? Your book will be a royal mess.

Im not going to read into to much of what the NFHS wants except that they want every effort made to make sure the initial player with the problem gets an attempt to play without penalty. Beyond that no free lunches.