Staff Playing Preferences

Perhaps I am missing something very simple, but I feel like I've exhausted everything before asking! What combination of tactical attributes are required to bring a staff member's preferred Playing Style to "Passing"? Pressing and Marking style are straight-forward with, for example, the edit of "Pressing", "Depth" and "Marking". However the Playing Styles don't seem to be so simply linked - reducing the Directness attribute from 20 to 1 seems to only change a staff members Playing Style to "Mixed".

Any help appreciated.