Attack keeps the ball on the offensive side.  They stay on the offensive side the entire  game.  Attack-man try to score goals also.

      Midfield plays both offense and defense.  after the defense makes a stop the midfielders take the ball down to the offensive side.

       Defense stays on the defensive side and tries to prevent the ball from getting shot on net.  They also throw or take the ball down on to the offensive side.

       Goalies try to stop the ball from going into the net.  Goalies stop the ball with anything to prevent a goal.