Are you scoring enough goals? If you are then I wouldn't worry about it.

Click image for larger version.  Name: goals.jpg  Views: 37  Size: 89.1 KB  ID: 1382

Above is my squad arranged by goals scored, their positions are also shown. Both my strikers are the top two on penalties, freekicks and corners list, though, because I bought them with extremely high attack stats. I usually play 3-6-1.