Both at the net
Most coaches see the net as the best place for a pair to be: side by side, about two to three metres from the net, with the ball in front of you.
Schritt 1
Your pair stands side by side at the net, each covering half the width. The other pair is at the back, defending.
Schritt 2
Their ball comes back at a comfortable height, and you volley it deep or at their feet, so they stay at the back.
Schritt 3
You both step back a little when they get ready to lob, so you can still reach a ball over your heads.