Wallabies defence coach Nathan Grey

Wallabies' defence plan backed

Grey is again under fierce scrutiny from angry Australian rugby supporters following Saturday's horrific 54-34 defeat, which has put New Zealand on track for a 15th straight year of Bledisloe Cup domination.

Australia missed an incredible 48 tackles and conceded more points than they ever have against the All Blacks, who cut through Grey's defensive structure at will to lead 54-6 shortly after halftime.

Grey admitted it wasn't good enough but said he was "very confident" he and the rest of the coaching staff would turn things around.