To win big tests
Joe Moody, Sam Whitelock, Brodie Retallick, Cane, Squire, Beauden Barrett, Sonny Bill Williams and Ben Smith are all still capable of 100 per cent in late October and November.
New Zealand's inherent advantage is that the national body is in charge of both the players and clubs. Friction, therefore, between Super Rugby coaches and All Blacks coaches can be minimised.
Super Rugby coaches, under intense pressure to deliver results and win games, are contractually obliged to resist the temptation to overplay their top men.
(Hurricanes) Testament to the impact quality coaches can have. Lost at the Waratahs, Lousi now seems primed to thrive in the XV-man game. Wellington coach Chris Gibbes deserves plenty of credit for Lousi's rugby development. The big second-rower (almost 2 metres and 122kg) arrived in the capital by way of the Warriors and Waratahs with his career in freefall. Lousi won two junior titles at the Warriors before moving to Sydney after a call from Michael Cheika. The move didn't go to plan, with injuries limiting his involvement and the 'Tahs guilty of not taking the care to educate Lousi on the intricacies of the lineout in particular. Converts, especially those in the forwards, need time to flourish. Now, in his fourth rugby season, Lousi is increasingly comfortable. Carrying strongly comes naturally but his ability to smother and hold attackers off the ground to force turnovers is a genuine weapon. Should only improve further under John Plumtree's guidance, and joins a group of emerging locks putting pressure on Scott Barrett and Patrick Tuipulotu. (Blues) Misses the start of the season with a broken hand but expectations – from the All Blacks down – are already building around this 20-year-old talent. Mostly that comes on the back of his performance in the memorable victory over the British and Irish Lions. It wasn't a perfect outing but, on debut, Perofeta showed plenty of vision and, most importantly, never looked overawed. He backed that up with a solid campaign for Taranaki. Perofeta possesses brilliant feet and does not shy away from challenging the line. No doubt errors will come as he grasps the responsibility of guiding the Blues but he does seem the future at No 10 for this franchise.
This isn't the case in England, where the privately owned clubs are forever in a battle with the Rugby Football Union about almost everything.
Theirs is a system without collective alignment between club and country and therefore it is one without compassion or compromise.
Neither All Blacks coach Steve Hansen nor England head Eddie Jones would say this publicly, but what they both know privately is that how their respective players are managed between now and November 10, when they meet at Twickenham, may be the factor which separates them.
It will be the same when the All Blacks play Australia in late October and Ireland the week after they play England — the margins will be so fine, the teams so evenly matched, that any hint of physical fatigue or mental staleness will be exploited.
In other words, if the respective rugby fraternities of Ireland, England, Australia and New Zealand take too much out of their players in the next six months or so, they will pay the price in the most transparent way.