Super easy way to unlock this is....
a) Start a dynasty with a team in a weaker conference.
b) Edit 5 players to have 99 stats in everything and make sure you put them to start.
c) Simulate all HOME games with ESPN Gamecast so you make sure you win, you can either enter the game by clicking Y, and click B to exit the Gamecast.
d) Do this until you win all your home games and once you reach the off-season, this will unlock!