Blackcaps coach Gary Stead admits NZ Cricket would be best served to divide international responsibilities between test and white-ball formats.
With his contract due to expire after the upcoming one-day international World Cup, Stead is currently discussing his future with his bosses.
The series win against Sri Lanka rounded out the most recent World Test Championship cycle and Stead believes it's time New Zealand followed the growing global trend by appointing one coach for tests, and another for one-day and Twenty20 internationals.
"I think it's time that we do need to split off and look at it," said Stead. "I think the modern game is becoming very tough for players and for coaches to try and sustain everything across that whole period of time, and NZ Cricket and I are definitely talking about that as an option."
England are the most glowing example of the benefits of such an approach, with Brendon McCullum and Matthew Mott leading their respective red and white-ball squads through a golden period of winning.
Stead insists he has no concerns over which of those roles may land with him, but confesses his true passion lies with the longest and most prestigious form of the game.
"I think, deep down, I am a traditionalist, and I love test cricket and what that brings, but there's something exciting about the short-form game as well," he said. "Like the players, I think the coaches enjoy having that mix at different times."
Since the start of his tenure in 2018, Stead, 51, has helped guide the team to a World Test Championship triumph, a T20 World Cup final and come about as close to winning a one-day international World Cup as you possibly could without actually winning it.
He is hungry for more success, making no secret of his desire to extend his time with the team beyond his current deal.
"These are a great bunch of guys to work with and it's a fantastic team to be a part of," he added. "It will come down to discussions with NZC and I, and where we get to and what that looks like."
The latest notch in his belt was the Blackcaps' test-series win over Sri Lanka, which they completed a day early at the Basin Reserve to round out a demanding run of four tests in five weeks and their home summer in whites.
After their drawn series against England - when they broke McCullum's streak of seven straight wins with one of the most remarkable victories in test history - Stead confidently assesses their red-ball season a success.
"I think, when you play four tests and you win three, yes, I think it is successful," he notes.
"I think the expectation sometimes is that you go and win very single game you play, but it's unrealistic, because the teams around the world are so good now as well. We've seen over the last couple of years that anyone can upset anyone.
"For us, when you consider we were struggling against England for a while, we found the result. We found a way to win that second test and that just gave us some momentum heading into the Sri Lankan series after that as well."
Attention now shifts back to limited-overs cricket, with the first of three ODIs against the Sri Lankans scheduled for Eden Park on Saturday.
With 10 first-choice players unavailable due to injury or Indian Premier League duties, Stead says fans can expect to see some experimental line-ups, as they test some of their fringe players - like South African-born batter Chad Bowes - with an eye to the World Cup in India in October.
"I think we're reasonably locked down with a big proportion of what our World Cup squad will look like, but this will be opportunities for other guys to give to the team and we can find out more about them, as much as they can find out about us as well," he said.
"They will be getting opportunities throughout this summer. It's not just here, we then go to Pakistan as well and there will be players that you might not normally see get opportunities."
