It’s a good point regarding Green, I assume c. 6 would suit him better as well.
Head has been okay-ish, but I reckon Head/Wade/Paine is the weakest part of the side by a reasonable margin. Paine’s leadership has been good and obviously we need someone to keep (ideally well), so Wade looks most dispensable to me, especially given his age.
Interestingly with Kohli out for much of the series, Aus might be in a stronger position, especially if we can win first up in Adelaide. Bringing in some fresh blood after that might be a reasonable entree.
I think I saw that Sayers had posted some surprisingly poor figures so far this season, so I suspect this won’t be his year unfortunately.