Assistant coach Ian Foster said Carter as at the All Blacks' Tuesday training session especially to talk with playmakers Beauden Barrett and Richie Mo'unga.
Foster said: "I'm actually keen to get him in to chat to our playmakers. He's got a lot of World Cup experience and I just wanted to really have him around, again to talk to the likes of Beaudy and Richie about what it's like driving a team through a World Cup campaign where expectations are high.
"And who better to tell that story than him," he said.
But that was only one area, ahead of the weekend that was being attended to. No matter what else was done, the fact remained the All Blacks needed to lift their efforts up front.
"Forget about all the other little things we're talking about here and who might have done what and all that sort of stuff," Foster said.
"We lost the physical battle and we've got to be better at that so that doesn't mean you go out there and be physical at all costs.
"The most physical players are the smart ones who know how to accelerate into contact, they're accurate with clean outs but within the bounds of the law and if you don't then you're going to expose yourself to judgment," he said.
Because there wasn't a lot of time between the games, Foster said they put the loss behind them fairly quickly, while at the same time absorbing the lessons, in order to get into their preparation for the next contest.
"Whether you win or lose, our goal on a Monday [is that] you pull apart the performance, what can we do better, what's going okay and when the 'what we can do better' list is a little bit bigger than the 'what's going okay' it adds a bit of spice to the week," he said.
"But come Tuesday it's just about getting excited to play again and they trained well. There was a lot of bubble and squeak about the team this morning. They're excited and the whole attitude from the whole squad today was where we would expect it."
In response to the three-week suspension of Scott Barrett for his red card, Foster said" "I don't think there's ever a best-case scenario when a player gets suspended because it impacts on his own preparation time and he's already had quite a bit of time off so it just means we've got a bit of work to do there," he said.
Barrett's treatment was an indication of where World Rugby had created a threshold and if that was the level then it was the consistency of that ruling that was going to be vital, he said.
In response to talk of head rolls used by Australia against the All Blacks, Foster said all the management were looking for from referees was consistency. It was a tough job they had and consistency was all they could ask for.