I know there is some player trait boxes that are unknown in CM11. Here is a guess on what they probably are. Remember in Fifa 10 they had target man, midfield maestro, box-to-box, shot blocker, clinical striker etc. Those are what I think some of the remaining empty boxes is for. For instance, Luca Toni uses a power header, but he is also a target man. Thus if you change his birth date to make him ten years younger and then select the target man option, set all his attributes to 50 overall, well then the attributes of a target man will grow more than others over the course of his career. Now I don't remember all the player traits from fifa 10 because it is no longer installed on my Cpu. But if anyone else still has CM10 and fifa 10 installed with Fifa 11 and CM 11, I am sure these boxes can be matched by comparison and process of elimination. Anyway that's that gentlemen. Have a nice day.