The first sparring in the test series went Australia's way at the Gabba yesterday. But how would New Zealand fare in that pastime of picking a composite XI from the two teams?
David Warner and Joe Burns cashed in yesterday - would they both be in that line-up?
And how about the seam bowling mix? There is nothing especially scientific about this, more a personal feeling, allied to numbers.
This team will obviously never play a test, but you work on the assumption the players are all in top form, and the pitch provides what is generally accepted to be an ideal surface - that is, it offers early help to the new ball, bats well through the middle and has something for the spinners late in the piece.
On certain selections no argument would be brooked, so those who walk into this line-up would include the pugnacious Warner, New Zealand's classy Kane Williamson, Australia's new captain Steven Smith, Williamson's Northern Districts' wicketkeeping chum BJ Watling and Australian offspinner Nathan Lyon.