Assistant coach Greg Nicol was given the head coaching reins against Samoa, which allowed Hager to watch the game from a different perspective.
Hager said compared to Thursday's win against Australia, they would need to find another level in this afternoon's final.
"I don't know if we go in really confident," Hager said. "They'll pick up from where they were the other day and we have to match it as well. So we have to raise the bar, knowing that they will as well." Australia beat Papua New Guinea 26-0 yesterday to confirm their berth in the final.
On the men's side of the draw, New Zealand will - as expected - meet Australia in the final this evening. The men's Black Sticks moved into the decider with a 25-0 win over Samoa yesterday, while Australia breezed past Papua New Guinea 16-0. Following today's final, neither Australia or New Zealand will play again this year with January's World League finals the next tournament.
Australia forward Jamie Dwyer said they didn't want their last game of 2013 to be a loss: "We've got three weeks off after this where ever you go in your home states and you just want to relax before we get stuck in to training again in December," the 34-year-old said. "So it would be a bit of a sour feeling if we didn't play well [today]."
New Zealand lost 3-1 to Australia during pool play on Friday where they struggled to create enough links through the midfield but did enjoy strong periods on defence.