"For a period of time there we were ticking it over. Whenever we put together six or seven overs or 25 runs, we'd lose another wicket, and that seemed to be the theme throughout our innings.
"Often it can come down to making a couple of better decisions, as batsmen, if you do get past perhaps that crossroads of pressure and come out the other side, then you can build those partnerships. It's a fine line."
The disappointment in the New Zealand batting display was magnified by the expectations coming into the clash, with a par score estimated to be over 300, on a surface which was expected to be quick.
However, Williamson said he was surprised by the surface offering more to the slower bowlers than the seamers, and believed the batsmen were far too slow to adapt.
"Coming back here, the traditional Napier surface has got a little bit more pace and bounce and tends to be part of those much higher-scoring games, and it certainly wasn't that surface, but it just required a bit more smarts and we didn't show that.
"It's fair to say we weren't expecting the surface to play that way, but in saying that it wasn't a bad surface, it was just different to what we were expecting. That's fine, that's what cricket is about. From our perspective we did want to play smarter on those sorts of surfaces."
Smart was a word that Williamson had on the mind post-match, arguing that there were no technical issues that needed to be solved, and better batsmanship all that was required for an improved effort in Mount Maunganui on Saturday.
"The cricket smarts is something I think we want to be just a little bit better at – it's something we do pride ourselves on but it just wasn't there.
"It's probably [about] awareness, and just making an adjustment to the opposition."
That opposition happens to be one of the best sides in the world, and the Black Caps will need to be near their best to get back on level terms.
