Gee, I think that the players (and uninformed coach) really need to know the "letter of the law". Why is one number "legal" and another "illegal"?
Where is Mark T. DeNucci, Sr. to "weigh-in" on this subject?
Now, the serious response....
When you have schools laying off teachers and other staff, due to budget constraints, it is necessary to be understanding (lenient) about the uniform "violations". As it was stated earlier. It's just a game.