All you need to do in order to unlock this Achievement is win a game. It can be unlocked against the CPU, and
NitrousSpeed has confirmed that it can also be earned against a second dummy controller.
To increase your odds against the CPU, choose the Rookie difficulty level, as it cranks up all your sliders while setting the CPU sliders down to zero. The teams are basically constructed like a fantasy draft, so your guess is as good as mine as to which team would be the easiest opponent to challenge.