I remember seeing this link in a very old post, and I think you should check it out. It lets you simulate matchups between any old team in pro/college football, basketball, baseball and hockey. Their is even one cool thing called simdynasty. You get to take a Div III football team, and try to build your prestige each year and get to DI. As far as I can tell, the season aren't long at all. Just wanted to pass along this information, because I'm having a blast with it. Here is the link.

http://www.whatifsports.com/locker/default.asp