I disagree slightly as regards Root - I thought he looked okay at the top of the order before being moved to accommodate Carberry, but he definitely looks a better bet at five and, if he is ordained as the next skipper as many believe, then he is going to find that job a lot easier for not having to bat in the top three as well.
Will Robson go? Not sure - it's a tricky call because we only have five tests after this series before the next Ashes. He doesn't quite convince, but has done okay at times and should improve for experience. Vince will not open in tests and Hales, for all he has done well, would be more likely to be blooded down the order. Lyth is probably next cab off the rank, but one wonders whether his cards are already marked...