When assessing junior players, setting is most often the weakest skill. To remedy this, Mark Barnard uses the 4-person setting drill.
As players set balls from positions on and off the net, the goal is to get into position quickly, aligning the feet, knees and hips toward the target. This drill is great as a warm-up, and gives non-setters practice setting to a target in the front right or left positions. Watch the video for a demonstration.