Ive got a young left hander who i coach hes got a very open stance and stays very legside but he struggles to hit full balls outside off his foot doesnt go across but goes forward down the line of leg stump when it outside off. I tried shifting him across but then got bowled round his legs leaving it so didnt know where he was. what would you do ? close his stance? or not ? or do something else. anyone got experience with similar problems.