JMO but FTO sounds really subjective and the validity of including FFTA is really questionable. If a defender fouled Billy King in the act of shooting should they really be seen as a better defender than someone who fouled JJ Redick? Isn't really just that they were lucky in getting assigned a below-avg FT shooter? And it gets really hairy when you're playing something other than man-to-man.
Well good luck with it anyway.