Andy Farrell says Ireland's limited time together and the performance against Japan was always going to favour fewer changes to his squad to face New Zealand.
The team announced for Saturday’s clash against the All Blacks contained just one change, with Iain Henderson coming in in the second row for Tadhg Beirne.
Rob Herring, meanwhile, takes the replacement hooker spot over Dan Sheehan.
"Selection is a big part of the week for us as coaches," said the head coach.
"Obviously, we all know the start of our season and how that’s been.
"We all know about the limited time that we’ve had together so the cohesion of our group is absolutely everything.
"At the weekend it was pretty cohesive, last week against Japan so we roll on with a pretty similar side.
"We thought last week that Tadhg was better suited to the Japan game and we feel that at the start of this game, Iain is better suited to start this game.
"100% Tadhg played really well last week, he will come on in whatever position it is and finish the game really well for us."
Three times Lions tourist Conor Murray was unable to force his way into the starting XV at scrum-half with New Zealand native Jamison Gibson-Park (below) getting the nod following a stylish performance last weekend.
"We thought Jamison played really well and deserves another shot at starting," added Farrell.
"As I said last week, he's more comfortable in his own skin at this level now and his maturity and leadership has gone through the roof at this level.
"I thought he had an excellent game last week, so he gets a chance again."
The team earned many plaudits in the wake of the 60-5 win over Japan, as much for the attacking intent as the execution. Farrell wouldn’t commit to a continuation at all costs, however.
"Like I keep on saying, it's making sure that we're in a position to suit the opportunities that's in front of us," he said.
"What we do know is that against the best team in the world, it will be limited chances so we've got to see those chances and be in a position to be able to execute those decisions in front of us.
Barrett starts for full strength New Zealand side
"The one thing that has to happen against the best team in the world is that when you get your chances, you have to take them.
"There certainly won't be as many chances as last week, but we endeavor to play our game and they endeavor to play their game as well.
"We've got to make sure that we play the game that's in front of us and that's all about decision-making.
"Of course, everyone wants to play quick and the game for the last few years now has always been about transition, both sides of the ball.
"It's the speed of thought, the speed of what we can get set as a unit across the field, and we're actually playing against the masters as that type of game, so we want to test ourselves against the best."
Ireland: Hugo Keenan; Andrew Conway, Garry Ringrose, Bundee Aki, James Lowe; Johnny Sexton, Jamison Gibson-Park; Andrew Porter, Rónan Kelleher, Tadhg Furlong; Iain Henderson, James Ryan, Caelan Doris, Josh van der Flier, Jack Conan
Replacements: Rob Herring, Cian Healy, Finlay Bealham, Tadhg Beirne, Peter O'Mahony, Conor Murray, Joey Carbery, Keith Earls
Follow Ireland v New Zealand via our liveblog on RTÉ.ie/sport and the RTÉ News app, watch live on RTÉ2 and the RTÉ Player or listen to national radio commentary on RTÉ Radio 1's Saturday Sport.