Originally Posted by
FellowTraveler
I don't understand the premise. To be "in a position by which the ref will grant them a charge," players have to be positioned to "stop the offensive player" from proceeding along his desired path. When a defensive player positions himself so that, for an example, an offensive player cannot get to the basket, that is very much "playing defense."
Another way of thinking of it: Why is what you describe "not playing defense" but screen-setting isn't "not playing offense"?