And that's the question the selectors have been trying to answer in the last couple of days – how ready are these four and the newly returned Nepo Laulala to take on the Wallabies?
The answer in the case of Retallick and Squire is easy enough. The former hasn't had a huge amount of rugby in the last four months having been out for six weeks with a broken bone in his chest and then another with six with a damaged shoulder.
But he's proven he's in possession of a huge engine and the coaches will be prepared to back him to start and hope to get a solid 60 minutes to 65 minutes out of him alongside Sam Whitelock.
Squire has missed only the last two tests and should be restored to the number six jersey, with the in-form Ardie Savea surely winning a rare start at No 7 after two impressive performances against Argentina and South Africa.
Moody, who missed nearly all of the Rugby Championship with a broken thumb, will most likely also start at loose-head with the plan to run him for a half to 45 minutes before bringing on Karl Tu'inukuafe.
Coles is a trickier question to answer. He only returned to action two weeks ago after last playing against France in November 2017.
"They have only been with us a couple of days but they have had quite a few minutes in the last couple of weeks with Wellington and Counties respectively and they came through that well," All Blacks coach Ian Foster said in specific respect to Coles and Laulala.
"That is the ultimate test isn't it – whether they can come through a game and come out the other side with that particular injury they have been rehabbing and not feel any effects. They are travelling well."
