Eyebrows were raised last week when Robbie Deans went for the conservative Berrick Barnes, with Cooper left out of the squad altogether, and Hansen today alluded to the player's frailties when saying: "He's a pretty talented player and he's got some amazing abilities and skills and causes a lot of damage, but his greatest strength is his greatest weakness, like all of us."
"Each individual has a great strength but it's also the same weakness that you have and if you over-play it you become a bit predictable. He's had a pretty good shake-up, he's spoken of how much it's hurt not to be there so I'm sure if he gets selected he'll come out firing.''
Deans will be forced to make at least one change after the dispiriting 27-19 loss in Sydney on Saturday, with the news that captain and openside flanker David Pocock has been ruled out due to a knee injury.
Will Genia will captain the team, and Deans, under pressure to improve an attack which has reaped just six tries in the past five tests, would do well to position Cooper outside the halfback. History is also against the Wallabies, who haven't won at Eden Park since 1986.
Hansen said high on the All Blacks' agenda this week will be improving their lineout, and upping their performance in general.
"When there's something in your performance that you're not completely happy with, that allows you to dig a bit deeper than you possibly would if you come off a super performance,'' he said.
"One of the challenges we set ourselves this year is not just about looking at the opponent and dealing with that side of it, it's also about dealing with the competition you have with yourself; to see if you can be better than you were the last time you played. In sport that's a major thing to be able to do.''
Loosehead prop Tony Woodcock is the only All Blacks casualty from Sydney and a decision would be made on him tomorrow, Hansen said. Crusaders prop Wyatt Crockett would be his replacement if he is ruled out.