Barker told Campbell Live there was a "very small window of opportunity" to secure funding for the next campaign, and that "the vultures were already circling" to poach Kiwi crewmen.
"Without the money to be able to get going again very quickly, we lose the people. Without the people, there is no Team New Zealand and I think we know that this team can be successful.
"The team is so much stronger than it has ever been. Team New Zealand in my opinion needs to continue ... but, if we don't act, it won't be able to continue.
"It's tough. You're trying to gather yourself after everything that's happened and the vultures are already circling."
Barker said he would cherish another opportunity to work with the team, but decisions about its future had to be made soon.
"We're in a process or a stage now where decisions have to be made to allow the team to continue because we have already had guys targeted by other teams ... if we start losing people now it won't have the ability to carry on."
However, McAsey does not seem to be fazed about poachers, instead adding that he has been pleasantly surprised by New Zealand's reaction to the loss.
McAsey said he was not as worried about the future of New Zealand sailing as he was before leaving five months ago for San Francisco.
"We always assumed, that was our mindset from the beginning, if we don't win there probably won't be a Team New Zealand anymore.
"I don't know what the future looks like, but it's certainly not as bleak as I thought it would be coming back not winning. I thought it'd be a lot more bleak than it is."