Why haven't they added a kicker position to RTG?

I know I'm not the only one who would enjoy playing a career as a kicker who shows up, does his job and puts the team on his back (or foot?)

I know it would minimize playing time, but I have my quarterback RTG for that. I'd love to get called in during big moments and try to knock one through the uprights with the game on the line.

I believe it would be a simple and impact full addition to this awesome game.