The Black Caps have axed Mitchell Santner from their test squad to play India.
It was just over two months ago that Santner inspired the Black Caps to their 99th test victory, but his struggles in their subsequent failures to reach three figures have seen him dropped from the side.
• Player ratings: The Black Caps who shone v India - and those who will be axed
• Bowled over! Black Caps complete stunning sweep of India
• Devastating debut: The big new Black Caps prospect
• Devine batting: Kiwi cricket star's incredible world record
A maiden test century – 126 – and three fourth-innings wickets against England at Mount Maunganui made it seem as if Santner had finally delivered on his all-round potential, but in the three tests since then has taken two wickets while leaking 338 runs, and scored just 55 runs in five innings.
His battles with the ball culminated in wicketkeeper Tom Blundell being preferred to roll the arm over for a stint during the Boxing Day test, before illness meant Santner played no part in the third test in Sydney, as Todd Astle and Will Somerville were preferred.
However, the red-ball retirement of Astle and injury to Somerville meant that Santner had a chance of retaining his spot in the squad for the two tests against India, but the selectors have opted for Ajaz Patel instead.
Patel may not even play against the world's best test side – his prior two appearances at the Basin Reserve and Hagley Oval, where the two tests are being held, produced no wickets in 40 overs - but he proved economical in those stints.
That has usually been Santner's strength – offering restrictive bowling lines on unfriendly wickets, as well as a lineup-balancing batting option. But, with the all-rounder having struggled for economy and runs in Australia, it weakened his argument for selection, with Patel earning the sole spinning spot.
Black Caps coach Gary Stead said Patel's domestic track record as wicket-taking threat gave him the nod.
"Ajaz has done really well for us in the past in overseas conditions, but we look at his domestic form and it's very good. It's a slight change of role in what we're looking for – that position is one is which we're trying to take wickets."
If the Black Caps opt to bypass Patel and play four seamers - a distinct possibility at the Basin Reserve - a test debut could be in order for Kyle Jamieson. Lockie Ferguson's return to domestic one-day cricket after a calf injury was not enough to prepare him for two tests, while Jamieson has been picked over Matt Henry and his 50.1 test bowling average.
Trent Boult has been ruled fit however, and will link up with usual seam-bowling partners Neil Wagner and Tim Southee, while Daryl Mitchell will provide options as squad cover after a strong test debut with the bat in against England Hamilton, and impressive recent form for the New Zealand XI and New Zealand A.
After his MCG century, Blundell will remain at the top of the order alongside Tom Latham, with Jeet Raval dropped.
Stead acknowledged some tough decisions had to be made, with Jamieson edging out Henry thanks to the point of difference his pace and height provides.
"Kyle will offer us a point of difference with the bounce he could extract on what is traditionally a good surface in Wellington.
"With a squad of 13 we've put a priority on balance and making sure we have the needed variety and different options depending on the pitch conditions at the Basin Reserve."
The first test begins in Wellington on Friday, with the second in Christchurch the following Saturday.
Black Caps squad: Kane Williamson ©, Tom Blundell, Trent Boult, Colin de Grandhomme, Kyle Jamieson, Tom Latham, Daryl Mitchell, Henry Nicholls, Ajaz Patel, Tim Southee, Ross Taylor, Neil Wagner, BJ Watling.