The fallout from the All Blacks' historic test series defeat to Ireland has continued, with growing calls for widespread change among former players and administrators.
But with the Rugby World Cup just 14 months away, there are questions over whether it's too little, too late for New Zealand.
Former NZ Rugby chief executive David Moffett believes the damage may already be done, if the All Blacks hope to build a World Cup-winning team for next year.
"They've got to make a decision,'' he said.
"The soft option would be to stick with what they've got and hope it comes right. The right option is to make some significant changes.
"I don't think we should be focusing on the next World Cup, because I don't think we can win it. I don't think we can win it with the current coaching staff or the current players."
NZR is expected to make its decision with the 2023 tournament in mind, but there are also suggestions that Foster shouldn't receive all the blame.
Former All Blacks halfback Justin Marshall has expressed his sympathy for Foster and isn't convinced it's the right time to look elsewhere for a coach.
"Of course, the public have a vested interest in the All Blacks, there's no doubt about that, but Ian Foster already has been appointed through to the Rugby World Cup," he told AM.
"Things will go wrong. There's no doubt they haven't had it all their own way, the All Blacks, and I do have some sympathy for Ian Foster.
"The COVID situation, the red-card situation in Dunedin, plus they've got some injuries to key players in key positions that they really need and they haven't been able to utilise.
"I think a coach will always get reviewed after every series," he added. "What you've got to do is perform and protect the All Blacks' history.
"They will look at why things are going wrong and why the gameplan is not quite in sync. Are the players to blame? Is the coach doing everything that he can?
"At the end of the day, he's not out there dropping the ball. He's not out there kicking the ball away, when they should be holding onto it, but if he is giving them those messages, then that's where it's wrong.
"No doubt, he will be under review, as will the players. I certainly do feel, yes, there is a review needed, but that should be internal."
The cost of sacking Foster could be between $3-4 million. Moffett suggests NZR look to the future with new investors and sponsors willing to buy into the All Blacks legacy.
"Part of the way forward is to get a younger coaching team that will connect with the fans and also our generation, because we want to see the ABs continue to succeed," he said.
