IMO owners that play PFs at the SF position make a mistake in that the majority of those players are inside mostly and make it much easier to defend. Offensive spacing is something that isn't talked about because there are no hard numbers to go by, but I really believe that playing 3 players on offense that all are mostly mid range and inside hurts a team offensively. I mean how many times in this league have we seen the Dennis Rodman at SF and Spencer Haywood at at PF fail terribly? I've never seen a team win this league with a player like Rodman or Horace Grant at SF.
When I first started playing in the ODL, I brought up the by-zone scoring. I loathe mid-range players... I want a paint scorer + threes. If you draft enough of the latter in the back court, then you can get a board hoarder at the 3.
It's actually harder to draft enough paint to counter balance the threes. It really is. If I can't get Barkley, I like getting a partial season player board-hoarder to start at the 3 (edge) and a bomber to come off the bench. It works really nicely, actually.