Not necessarily the fastest, biggest, or strongest, but just players that quietly are able to be game changers when needed??

Kicker. A good FG kicker can win games in this league.

me

That dude for Triple Crown that stands on the sideline and never gets in but always clapping for the other guys. He gives them such great motivation.

kickers determine the outcome of 50% of the games in the NFL. Here i think its even higher.