For me it hasn't been as much that, my PF can guard any spot well it's been more like. Well earlier I played the Pistons, I'm guarding Josh Smith up right top of the 3 point line, Al Jefferson is guarding Monroe (or Drummond I don't remember which but it doesn't matter) and as the ball swings across the perimeter to Josh Al leaves his man and runs up to Josh and then his man becomes my man and is left wide open and scores. I didn't get why switch when neither guy had moved at all.