After the last South Africa tour, everyone I'm pretty sure was happy with how Bairstow was doing. Granted he's been very average for the last 12 months in test, however, which of the current crop haven't? Stats ultimately don't lie - only root averages above 40. The batting unit is the weakest we've had for some time. For me, stick Bairstow in at 6 - I don't believe he's a number 3 against good fast bowling, his defence isn't solid enough. But against the softer ball, I'd be more than happy having him come in to get his eye in and then take on the 2nd new ball and up the tempo. However, the top 3 have got to give the shot makers the platform to do what they do best - which hasn't been happening.
i didn't appreciate that it's nearly 4 years since Ian Bell last played a test. Bloke that averaged 45 was sent to pasture, with nobody to replace him. He could have still been playing test cricket now (injury permitting).