"We've been pretty inconsistent the whole tournament. That's the most disappointing thing," Whitelock said.
New Zealand didn't appear fired up for the challenge yesterday, after losing what amounted to a semifinal 4-2 to Australia 24 hours earlier.
"Yeah, I guess that's part of it, but if you want to win a medal you've got to turn up the next day and perform. There was a little bit of a lack of urgency and want, unfortunately."
Creating chances had not been the issue up front for the Black Sticks; finishing them off had been, while Whitelock believed sorting out key defensive points, including holding the right positions and making it more difficult for teams to get into their circle, would need plenty of work when the squad gets together in Auckland later this month.
The players have the next week off before a solid block of work begins ahead of flying to the World Cup on May 19. The competing squad is expected to be named on May 1.