the defensive mids do not get enuff points for a deserved game so in that respect i think its crucial changes need to be made. I think the midfielder should be the comprimise between the striker and the defender -
1 point for a tackle some saught of reward for a clean sheet (although less than a defenders reward since they have less involvement in this field) if they score or assist , give them an extra point more than what a striker or attacking mid might get.
Also not for just midfielders but possibly integrate an extra 1.5 points for a defender who scores to reward the difficulty of scoring from that position. see what im getting at?