Bairstow has to bat at five, its so screamingly obvious. In South Africa, it was the fourth test before he was out other than slogging with number 11 in - and he has been batting that way for Yorkshire for the last 18 months. Its remarkable how an order that features an assortment of Lyth, Lees, Williamson, Root, Ballance, Bresnan, Rashid and Leaning - all test players past present or future - can grind and tough it out, and Bluey walks in and looks like he's unrolled his own private pitch, which is always a Taunton shirtfront.
If they want him to keep for the time being - which is likely given Buttler has not played first class and they don't seem to have a clear third choice - then okay. But you don't have your best player (and right now he is arguably better than Root even) at seven.