Seeking what would be just a fifth 'Grand Slam' in their legendary past, the All Blacks have embarked on their tour at an crucial period.
Games against Ireland, Scotland, the English squad and Wales await Scott Robertson's side across the next four weekends but, in addition to the possibility to match the teams of previous successful tours in the record books, the matches will be used as a yardstick to measure the progress of the squad under a manager now two years on from beginning his tenure.
Concerns over a shortage of an distinctive approach, continuing controversies over team picks and leavings from the coaching ticket have all fueled the sense that the most famous squad in the game is currently one in a time of change.
Most importantly, it is the dip in performances from a previous peak set between the global tournaments of 2011 and 2019 that has caused some to suggest that we have evolved beyond of the period of Kiwi superiority.
Ahead of their journey for the European tour, it was announced that in the coming year, in the non-existence of the southern hemisphere competition, the All Blacks will meet the Springboks in a warm-weather tour dubbed 'a unique competition'.
Traditionally the sport's top competitors, there is no question over who has lately dominated of what organizers have labeled 'The Premier Rivalry'.
Over the past seven years, the Springboks have secured a pair of World Cups, three Rugby Championships and a tour against the northern hemisphere selection to be considered as the side of their period.
The All Blacks have maintained to beat Ireland when it matters most, overcoming this weekend's rivals in the global competition of the past two tournaments. They have, additionally, been defeated in just a pair of the last fixtures with the English team, have defeated Wales in every encounter since over sixty years ago and have never suffered defeat by Scotland.
But the diminishment of their status as the sport's measure of excellence will remain frustrating.
Whereas the All Blacks reigned supreme through the previous decade - securing 87% of their international games, as well as lifting the global trophy on several instances - the World Cup of the previous competition can now be seen as when the balance of power changed in the world sport.
New Zealand defeated the Springboks in their first game of the championship in Japan, but it was the South Africans who were finally victorious in the championship match.
Since then, the New Zealand's victory ratio has declined to 71%. South Africa themselves were defeated in ten of their following games but, since the start of last year, have won at a percentage (eighty-three percent) to rival even the former Kiwi champions.
Throughout the comparable duration, the Springboks have won the majority of the recent encounters between the opponents, including victory in the latest global tournament decider.
During their pursuit of their latest continental championship, Rassie Erasmus' side delivered a significant beating on the New Zealand team through overwhelming display in the capital, a outcome which has ignited another round of controversy concerning the progress of the team under their leader.
Possibly most concerning for fans of the All Blacks will be that, alongside their usual power, the Springboks' achievement has come with an creative approach more usually associated with their own side.
At the time that the New Zealand team were at the height of their abilities 10 years ago, they were a ruthless counter-attacking unit capable of destroying competitors from every section of the pitch and at any moment of the match.
Today, their offensive approach is less defined as Robertson, who has given 19 debuts during his recent tenure in charge, tries to first establish the basic building blocks of a winning team.
It has already been confirmed that the assistant coach responsible for offense, the current coach, will leave his role after the fall series, making him the additional person of management team to exit after previous staff member departed last year after just limited matches.
It was not just previous achievements, but his approach, that was predicted to carry over from Crusaders when he assumed control after the 2023 World Cup but, so far, the two aspects are still a work in progress.
After private equity firm Silver Lake invested capital in All Blacks in recent years, the ensuing statement spoke of the "search of new global opportunities" for the organization.
That task has possibly been more challenging by the shortage of a crossover star. Ardie Savea and the trio of family members continue to be household names in the rugby, but the distribution of talented players has expanded significantly. Savea is the single New Zealand player to receive international honors in the recent years, in contrast to 10 in multiple seasons between previous generations.
Rather, efforts have been undertaken to introduce the All Blacks into previously untapped markets.
The opening phase of this 'Grand Slam' tour brings New Zealand not to Dublin but Chicago, a revisit to the stadium where the Irish team achieved a landmark success in the contest nine years ago.
Since the reduction of pandemic limitations, the All Blacks have also