When part of the field is blocked by the marker or the sideline, the defense doesn t have to worry about covering the whole field. But there is still a lot of space left to cover. The defensive players are positioned so that for almost every race offensive players want to run, there is a defender already there who has a head start. This is illustrated below. Offensive players A and B are in the stack waiting to cut, they are covered by defenders 1 and 2 respectively.
Defenders are on each side of a cutter.
This concept can include three or more players. Each player is responsible for cuts in a particular direction. This means facing the front of whoever is cutting. The front players play a more conventional person to person. The marker is called 0 and forces forehand.