Bairstow shouldn't bat as high as 5. The team now, is how I feel it should stay for the next couple of years. The only changes I would be thinking about depending on performances, are Hales spot opening, and Ali playing as the spinner.
Butler doesn't have the mental capacity for Test cricket, doesn't seem to have the passion either. Bairstow I imagine is someone that works very very hard at his game, keeping is improving, had a good day yesterday.
and right on cue, Hales is gone. Who glued his feet to the floor?