This Achievement unlocks at the end of the game if you get 13 steals with one player.
Set up a game using a good team (like Florida) against a weak team (like Hartford) and crank the sliders up in your favour while reducing the sliders against the CPU. When the CPU inbounds the ball, aggressively try to steal the ball from him using the X button. (After you knock the ball loose, you must retrieve it before the CPU for it to count as a steal.)
Continue to use the same player in this method and you should easily rack up 13 steals in the game. Increase the length of the halves from the pre-game options if you are having difficulty getting 13 before the end of the game.