Have the wing responsible for the kick only worry about the crossbar -- he can leave on the snap and be in position to see if the kick is long enough by moving straight towards the endline -- if the ball comes back the other way, he's already near the sideline. The referee determines if the kick is between the uprights as is the case in 4-man on a short kick.
This is also a reason I prefer two wings instead of a wing and an umpire when you only have 3. But if you insist on using an umpire he needs to be able to turn himself into a wing in this situation and cover the sideline. Let the referee or the other wing try to clean up best he can behind the play.
Rich
|