"I think because Cat has had an awful lot of frontline experience, she offers much tougher competition for that spot than Irene has had in the past," said Aitken.
"We're very lucky that we've got two different styled shooters and they do present different qualities into that circle. How we sort of balance the two of them is going to be interesting."
But if van Dyk is bothered by the sudden competition for her spot, she is not letting on.
"It is fantastic to have Cat in the team, she's an incredible player, she had a brilliant ANZ season and it's great we have that depth there," said van Dyk.
"It's great that Ruth can put either one of us on and it won't cost the team a single goal."
It would be wrong to write van Dyk off as a fading force - she was the stand-out for the Ferns in the world championship final in July, albeit her efforts were in vain.
But there is growing recognition that the Ferns need to begin to prepare for the post-van Dyk era. Although the same has been said for the past five years, at 39 years old van Dyk is a year-by-year proposition and the sooner Latu is brought into the international game, the better.
Aitken said while the aim is to integrate Latu into the Ferns system as quickly as possible, there will be no "easy roads" into the starting line-up. Van Dyk has no intention of simply keeping the seat warm only for Latu to slot straight in when she is ready.
"Irene's definitely rising to the challenge, which is just ideal," said Aitken. "And that's always been the interesting thing about Irene, she hits a road bump and then she goes away and thinks about it and works at it and then she goes forward again. So I think it will be very interesting to see in this series what she will bring."
Latu too knows the work she has ahead of her if she wants to snare the starting goal-shoot bib.
"I still believe, and I don't care what anyone says, that Irene is the best shooter in the world. So to try and get on the court in front of her is not going to be easy, but that's got to be my goal," she said.
"She knows I love her, but I'm going to try and replace her, which is what we have to do in sport."
While Latu was one of the stand-out shooters in the ANZ Championship this year, topping the competition in the accuracy stakes, Aitken is warning not to expect any miracles from the crafty shooter in her first few outings for the Ferns.
"I think people do still need to realise that it is quite a big step up to the Silver Ferns and there is a period of adjustment that Cat actually needs to make while she is in this environment." she said. "There's been a lot of attention around her, but now it's actually about settling her into the team."
With the retirement of Temepara George, Latu no longer has the safety net of her Mystics teammate backing her up in the midcourt. She now needs to familiarise herself with the subtleties of the midcourt play of Laura Langman and Liana Leota, who is expected to take on the starting wing attack role for the rest of the year.
Likewise, Langman and Leota are still learning where Latu likes the ball to be placed and how the fleet-footed shooter moves.
But it is van Dyk that is the first person to offer Latu advice and needed encouragement as she tries to find her feet in the new attacking set-up.
"Irene is amazing, she's a really giving player and she supports and encourages me all the way," said Latu.
