Enoka had little background in rugby until Wayne Smith, the former All Black, started selling him PE equipment. Enoka's "obsession" with the mental side of sport piqued the interest of Smith, who invited Enoka into the New Zealand set-up in 2000.
Enoka became a confidant to Graham Henry then Hansen. Henry describes his impact as "phenomenal"; Hansen as "magnificent".
Enoka said his role is "equipping our men with the tools to be able to perform under pressure - giving them the mental skills they need to be strong". So how does he define pressure? "When everything is on the line and you have got to get a job done performing at the best you can at that particular moment," Enoka said. "When the stakes are high, there's high scrutiny, high expectations and the consequences are great."
The All Blacks' ability to withstand such pressure is evident not only in the comebacks they have mounted but in holding on to leads in closely fought games. Before their blowout victory against the US on Saturday, nine of their previous 13 matches had been settled by eight points or fewer.
Wyatt Crockett, loosehead prop, says the squad view Enoka as the custodian of their culture. When aberrations occur, such as Aaron Cruden's missed flight, a player is answerable to his teammates. There is a rigidly enforced "no dickhead policy" and every player takes turns sweeping the changing room after each game.
"The dickheads and the posers who are not genuine about adding to this wonderful legacy just don't survive," Enoka said. "They become one-test ponies and get chewed up and spat out. As an All Black, you understand the team powers above the individual and you are part of a wider legacy, passed down from the ages. We want people to cherish that and nourish it for the next generation."