Was he ever ... assistant All Black coach Ian Foster noted a few weeks back that he'd never seen any lock play so well in their rookie season. Retallick has been phenomenal in terms of rucks hit, lineouts won and tackles made. He adds his weight well in the scrum and Canterbury know that all three locks involved last night for the All Blacks should have been theirs. He is the one that got away.
That Retallick was the one to start on the bench last night was because of the combination coach Steve Hansen thought would work best: "I think locking is a combination and I think having a big ball runner versus two streaky, skinny guys [Whitelock and Retallick] even though they are not that skinny, worked better for us in the Irish series and we want to have another look at it."
There is also an element of forward thinking in the selections. There are only three locks in the squad and Retallick, at just 21 and with a massive Super Rugby campaign behind him, is probably most in need of a spell on the bench. While he's a big man and well conditioned, the physicality of modern rugby can't be underestimated.
Back in 2010 when Whitelock emerged as strongly and as surprisingly as Retallick, the selectors decommissioned him for a spell in the Tri Nations. As well as Whitelock had played, as well as he had coped with the step up, the coaches were conscious that at just 22, he was mostly playing against athletes five or six years older, who were better equipped to cope with the relentless nature of the collisions. That caution paid dividends with Whitelock and may do so again with Retallick.
"Every game is physical," says Whitelock. "The physicality of Super Rugby is huge and then international rugby ... it keeps going up again. I think in your first couple of tests, you are so excited that you just want to get out there. Once you have played a few more tests - and I haven't played a hell of a lot - you definitely know what is coming. But I think Brodie is only going to get bigger and stronger and mentally, once he's had those experiences like playing Australia, they all help."
At the core of his game are classic skills that will serve him throughout his career. He hit 52 rucks and made 17 tackles against the Crusaders in their second round-robin clash. Coaches love those stats - those are game-winning numbers - and few locks in Super Rugby, even the best South Africans, can deliver the same work rate, the same effectiveness.
Hansen knows what he has with Retallick, knows that he was lucky an astute judge and expert technical coach such as Coventry was prepared to take a risk. The whole of the country will be paying fierce attention now to the ITM Cup to see if they can spot the next big thing.