The accepted theory was that bowlers win you tests and batsmen save them. Only partially true. Batsmen give bowlers opportunities to win tests.
So is this the best batting lineup New Zealand has ever carried into a test? Almost certainly not.
Williamson and Taylor will probably end up breaking Crowe's records for centuries. Taylor is already fractionally above Crowe's 45 average, but neither yet possesses his authority in all conditions.
McCullum has already sailed past Crowe's aggregate and is unquestionably the best "batsman" part of the wicketkeeper-batsmen New Zealand has produced, but as a batsman alone he is a luxury item - the way he bats means an epic failure is as likely as an epic innings. Tom Latham has had a great start to his opening career, but it is too soon to make conclusive statements as to his suitability to the role. It wasn't long ago that Hamish Rutherford was the bright future, and he is now on the outside looking in. BJ Watling will continue to make important runs and the Corey Anderson-Jimmy Neesham punch gives New Zealand a left-handed hitter in the middle order.
But we must put a caveat on the 42 centuries. That total was boosted significantly by Daniel Vettori's return, which in all likelihood was a one-off.
Still, New Zealand are in a rich vein of century-making form. It may not be the be-all and end-all of test cricket, but it certainly helps.
Tons of runs
2014 v Pakistan, Sharjah
42 centuries*
Ross Taylor 12
Brendon McCullum 10
Kane Williamson 8
Daniel Vettori 6
BJ Watling 3
Tom Latham 2
Corey Anderson 1
1993 v Australia, Eden Park
39 centuries
Martin Crowe 15
John Wright 12
Andrew Jones 6
Ken Rutherford 3
Mark Greatbatch 3
2004 v England, Nottingham
36 centuries
Nathan Astle 9
Stephen Fleming 7
Craig McMillan 6
Chris Cairns 5
Scott Styris 4
Mark Richardson 4
Jacob Oram 1
*century totals at time of test, not career