Never got into football sims before but I'm doing my best to show Matt Millen that I can in fact run a team better than him, haha...
Goal Line Blitz - Beta - American Football MMORPG
You create a player and can actually own a team too. Control the tactics, sign your own players (other humans that sign up like me and you) and build a winning team from scratch in an online sim community.
Kinda like "The Sims" but Football Style... loads of fun and I admit I got hooked a few weeks ago...