The higher risk option was to kick short and contest. They danger with that was giving up possession higher up the field. But the reward was that they may win the ball back and control their destiny.
It was a big call for captain Kieran Read to make, but standing under the posts with the scoreboard at 29-28, he told his troops they had to trust their skill set and trust they could execute what they needed under pressure.
Being brave would be the way to glory reckoned Read. It was maybe the biggest, or most astute at least, decision of his captaincy to date.
"We spoke about getting the ball back so I said to the kicker put it on the money and I'll chase and try to win it back," said Read. "It was just a case of us playing once we got that ball back. I was pretty happy about that."
There was more to it than that, not the least of which was the responsibility Read took to lead by example. Just as he did late in the third test against the Lions, he won the ball in the air and then two phases later, he made the critical linebreak that saw him storm into space, turn it inside to TJ Perenara who then released the flying Beauden Barrett.
The All Blacks trusted their skills, they trusted their captain and they won because of it.
"Thanks to a lot of composure," said coach Steve Hansen when he was asked what had got his side over the line. "The guy to my left [Read] really stood up in the last four or five minutes - took the kick off, made the break and was well supported by the other leaders.
"A lot of sides would have chucked it in and they didn't and they got the reward for it."
Perhaps not surprisingly, Wallabies coach Michael Cheika saw it slightly differently. He could see that his side had put in everything, had given themselves a golden chance of winning when Beale scored late, and that they should have finished it off.
"At 77 minutes we were in front and we should have sealed that game off."