Why quit after winning one? Why not try and see if you can piece together a dynasty on the level of the 70's Stealers or the 80's 49ers?
I already commented on this thread, but the key for me is finding a good level of sliders that allows me to have good games (except my team is just flat better than everyone now, I simulated and they went 15-1).
I usually am a college guy because I like the roster turnover and priming for a run with a senior laden group, but the career progression of a franchise QB and building around him etc. is pretty fun this year.