This is why I think they still need to make a My Skill 2.0, but it would require a better SIM engine and a few calculations beforehand.
At the moment sim stats are worked out depending on overall (IIRC, flame on if I'm wrong), which gives the illusion of authentic stats while still not always accounting for individual idiosyncrasies.
Now, if they made the SIM engine robust, what could happen is the computer could run so many simulations beforehand and produce a "baseline" of what you are expected to do against your opponent (this is something you wouldn't see, BTW) - if you deviated too far one way or tother in key categories, the system would adjust your sliders accordingly.
This would stop the problem of getting punished for blasting a bad team, or rewarded for losing against someone you should. Base it around average statistics (completion percentages, yards per carry, etc) rather than total ones to allow you to conduct your own gameplan and voila. Also create a relatively generous "dead zone" around each stat so sliders wouldn't jump all over the place on the slightest differences.