Once the bigger players starting turning up was when they started changing the way the game is played. safety first. Not against safety but a good hit now and then can change a game. Don't see the big hits anymore without a 2 minute unrelease call. Back in the day they called it finishing the play. Especially a 6'3 220 lbs defense on a 5'5 attackmen. The smaller player will get the call everytime take one for the team. The smaller players are tough but it always looks vicious so the call is made