I don't know about you, but I expect my strikers, 7* shadow striker left winger and right winger to put the ball in the net. The other players score as well, but not in the same numbers. If STs and AMs score the most, then they will get the top ratings and be at the top of the table. I can't see what fiddling about is needed to this.
There was a time when people were complaining that STs weren't scoring and the top 5 didn't feature STs. It appears you can't please everyone...