New Zealand head coach Mike Hesson believes his side are suffering from an extensive overhaul in playing personnel following their 3-0 series defeat to Australia.
The Black Caps were soundly beaten in each one-day international, going down by 68 runs in Sydney before defeats by 116 and 117 runs in Canberra and Melbourne respectively.
A year ago, New Zealand were contesting the World Cup final against their old rivals, but the current vintage looks a long way short of that side with the likes of the retired Brendon McCullum proving difficult to replace.
And Hesson feels the tourists were too easily overcome by an impressive Australia outfit.
"The first couple of games I'd describe them as a passive performance, especially in the field and with the ball," Hesson told reporters.
"There were some good signs [in Melbourne] with a more complete performance with the ball and in the field but we weren't able to back that up with the bat.
"The energy and intensity in the field is something we've really instilled into whoever has come into the group and those first couple of games that was the most disappointing, that we didn't offer as much as we needed to in the field and didn't back up our bowlers enough.
"We haven't played well at all. We've played a side with a little bit of trepidation. It's exposed us in some areas that we knew a little bit about but it's shown us we've got plenty of room to move.
"We've lost 10 players from our side from a year ago and we've got some players there who are trying to find their feet in international cricket.
"They've played against a very good side and some have shown glimpses and others have been found a little bit wanting in areas where we thought they'd be better in."