...substitutions so that the offense is Handcuffed in their comeback attempt and doesn't have any way to stop the clock the last minute of a close game. Or punt from your opponents 30 yd Line instead of kicking a FG in a tight game so you can watch the punt travel into the end zone just to come out to the 20 yd line for a 10-12 yd net gain in a game you later lose by 3 pts .