How about if someone starts at pg they can only guard up to the 3(sf), start at sg can guard 1-3(pg,sg,sf), start sf can guard 2,3,4(sg,sf,pf), start pf guard 3,4,5, start at C guard 3,4,5. I guess who the sf could or couldn't guard in my scenario may be a sticking point, perhaps small forwards could guard any position. And when I speak of starting position it could mean where they start offensively or based on their pre-selected positions by whatifsports. Anyway, I like the idea of separate defensive matchups and think it could balance things some between the great recruiters and great game planners. Of course those that excel at both will still be champions.