 The reverse tactic can be used, by fast and slow bowlers alike, by placing seven or eight fielders on the off side and bowling far outside off stump.The batsman can safely allow the ball to pass without fear of it hitting the stumps, but will not score.If they want to score they will have to try and risk an edge to a wide ball and hit through the packed off side, or trying and drag the ball from far outside the stumps to the sparsely-populated leg side.