The idea of a full ground press is to lock the ball in and have repeated entries back into the forward line. Players need to move and keep their space where ever the ball gets kicked to. If a mark is taken by the opposition, the whole zone needs to move back so that the kicking team does not release a player out the back. As soon as the other team gets possession of the ball from about the half back line, players should return to their original positions as the team with the ball will now start pushing forward.