this is not something that needs changing as its already reflected in the skills.
just because a guys 7 foot dont mean his great inside and a great rebounder , a 6 foot 4 guy who is a great rebounder will out rebound a 7 foot poor rebounder, height is factored in at training and i think its the same in real life. yes 7 foot player would start with better skill inside then a 6 foot 4 player, but if the 7 foot player never trained and the 6 foot 4 guy did, it wouldnt be to log till the 7 footer would be getting dominated.