For Naholo, the recall to the starting XV is a good reward for his form for the Highlanders, and he too was a thorn in the side of the Lions for his Super Rugby franchise when he used his power to cross for a try and get close to another two weeks ago.
Dagg has played the majority of his 63 tests at fullback so the All Blacks will lose little there in Smith's absence, although rugby supporters of all persuasions will want the Highlanders captain to recover quickly from his latest head injury - his third in recent times.
"Whilst it's disappointing to lose both Ben Smith and Ryan Crotty, it creates an opportunity for others," head coach Steve Hansen said. "Izzy is a world-class back-three player, as is Anton in the midfield, and both Waisake and Ngani are coming into the test side following outstanding performances against the Lions for their respective Super franchises."
The injection of Naholo on the right, in combination with the pace of Rieko Ioane on the left, could pose serious problems for Warren Gatland's team, a group likely to be tiring at the end of a long season and who will know that they gave it a fair crack against the All Blacks in the first test but came up well short.
For the All Blacks, it was just the beginning, and they will expect to put in a vastly improved performance, especially on defence.
"Whilst we were happy with the win last weekend, we know that it was just a start, in what is a three-test series," Hansen said. "That means the job is far from done. It's going to require us to take our game to a higher level. It's going to be very demanding, physically and mentally, on both sides.
"We're aware the British and Irish Lions have their backs to the wall and will chuck everything at us to keep themselves alive in the series. They are a quality side who we respect immensely.
"In reality, last week's test could've gone either way had they taken more of their chances. Our job will be to make sure that we shut down their counter-attack better than we did last weekend and at the same time, win the critical moments across the 80 minutes. As always, it'll start with the battle of the tight five.
"We've worked hard throughout the week in our preparation here in Wellington and are now looking forward to Saturday."