American Football Coaching RPG Simulator.
I just started playing it myself and it's still in beta. I'm the OC of Bowling Green. They have college and pro leagues. Start off as Coordinator and work your way up to Head Coach.
My newest addiction
Edit: You're right Evan I shouldn't have done that.
Here's the site without referral code which is what I should have done first.
http://www.pigskinempire.com/