I got this achievement as a striker. It seems that striker is the easiest position to use for this achievement. You get awarded for shots on goal, goals, assists, and forward passes completed. Any time you intercept a pass or win a tackle, you get some major points, but as a striker, it is hard to do. In addition, I've been taking advantage of playing against teams like Cuba and Haiti that are not as talented as the US scoring as many goals as I can in order to boost my abilities and match rating.
I would recommend not putting in any crosses as you lose a lot of points if it is not completed. Getting a card also hurts a lot.