Utter madness to burden Root with the captaincy now with the Ashes coming up. He has just had his first kid too, so has an awful lot going on in his life at the moment, its likely to affect his form and we need him performing to his top level with all the rookies in the top order. I am a bit disappointed by Cook's decision, he could have waited until next year for the good of the team.
JJ I think Broad would be a good pick as a temporary fix, there is hardly any other candidate really. Bairstow perhaps, the keeper has the best view of the game after all. However it is incredibly strenuous to be a top flight batsman, keeper and captain - ask AB, it nearly burnt him out.