Dimitri Mascarenhas felt New Zealand did not do themselves any favours on day one of the second Test, but hailed the "phenomenal" David Warner after he made an unbeaten double century at the WACA.
New Zealand's hopes of levelling the three-match series appear slim after Warner followed up his two centuries in the first Test by hitting 244 not out, while Usman Khawaja (121) scored his second ton of the series.
Destructive opener Warner broke the record for the highest score on the first day of a Test in Australia and the hosts were in complete command on 416-2 at stumps after Steve Smith won the toss once again.
Black Caps bowling coach Mascarenhas admitted the tourists will have to go back to the drawing board after a gruelling day in the field.
"We weren't where we want to be, we know that, but they played some pretty special innings out there as well," said the former England all-rounder.
"I think for 85 per cent of the time we were pretty poor, but Warner was pretty spectacular - he didn't give any chances the whole way through.
"He's in a rich vein of form at the moment - we've tried a few plans and they're definitely not working at the moment.
"So we're going to have to reassess tonight and see where we need to bowl to him, but it's tough; he goes through spells where he'll hit 20 ones in a row and all of a sudden he'll hit 20 off an over.
"He's pretty phenomenal at the moment."
The travelling side were left frustrated when umpire Nigel Llong ruled Khawaja to be not out when he edged a Mark Craig delivery to BJ Watling on 38 and the Black Caps had used both reviews.
Watling had already failed to take a chance to dismiss Khawaja, who shared a second-wicket stand of 302 with Warner, off the same bowler.