Its to let that mangement has taken decision about sehwaq.this decisiion might have been taken long back.if the decision would have taken before today sehwag might be playing a different role in the team.he would be playing as a second specialist spinner comming lower down the order for batting at 8th position.now their is no point in including sehwag.you can see that in which position the andrew hall plays in south africa team.