Interesting that some would cast aside Pietersen and keep Carberry who is give or take the same age. That strikes me as pretty close to madness - okay, KP does some seriously strange (No Swearing Please) at times but the fact is he is still the best batsmen we have developed in the past 20 years with Virgil the only one who even gets within shooting distance.
For me, if they still want to be, Cook, Bell and KP should be the core of our batting going forward with the expectation that they have 2,3 and 5 years left respectively. That leaves three slots in the top six which go to Root (probably as a number four or five because we have seen to date that he has fewer tempo issues there), Stokes for the time being and an opener.
Who the opener should be is tough - those who say Compton was hard done to have some credibility in that there have been other players given far more chances by the Team England set up, though I think they ignore how utterly at sea he looked when asked to bat at that level on spicier pitches. Carberry looks just short of the required level which, given his age, means that he has two tests to do something spectacular, failing which I think Robson should be given a relatively undemanding 2014 to bed in.