Using this excel calculator, you will be able to see how well a player can play a position, role and duty. Simply enter your players attribute information and it will provide you with the average attribute rating (out of 20) for all the attributes linked to that position, role & duty. The attributes selected per role are the key attributes that FM 16 suggests. Due to Goalkeepers having different attributes, that position has not being selected.
If you find any issues then please let me know and I will look into them. Enjoy!