I know in basketball it's one game and you lose your redshirt (other than extenuating circumstances, usually related to injuries), but my question is to you have to officially declare that you're pulling someone's shirt before a game, or can you just put a guy in who has never played? Like we don't think Straus/Barkley are going to play this year, but if the everybody fouled out and/or got hurt and it was the difference between losing a winnable game with only four players on the floor or burning a redshirt, can Collins just decide to burn the shirt on the fly in the middle of a game? I assume he can, but I'm appealing to the experts here.