For example. Let's say my sf is the best outside defender and my opponents best outside offensive player is the sg. In man to man I would put my sf to defend the sg should I do that in a zone as well or doesn't that matter at all?
If I don't remember wrongly, it won't matter. I think your opponent's SG can shoot from the left/right/center but your players will stick to their side of the zone: meaning that regardless of where you put your players, they will still somehow match up with your opponent's best shooter some time or another.