Foster said he thought the All Blacks lacked structure in parts on the counter-attack and hoped they could tidy their act up in that area of the game, while also playing with a higher degree of accuracy.
"That's primarily what we want to do. Right now, we're just focusing on preparing well. We've got to get into some really good habits in these three weeks as a team.
"We've got to make sure our preparation and process about how to get a better performance each week are done well. That's just become our main focus."
The weather may stifle the All Blacks' ability to bring their rampant running game to the fore this weekend though, with long-range forecasts suggesting single-figure temperatures and plenty of rain. There could be more snow on the way this week too.
Hurricanes wing Julian Savea might spend more of the 80 minutes chasing punts from the boot of Dan Carter rather than dotting down for more test tries after he opened his international account on the weekend with a hat-trick in his first test.
Foster said the weather would play a part in their thinking ahead of the game.
"We don't know what to expect this week. There's interesting forecasts around so we've got to be prepared for everything at this time of year. [There could be] a bit more kick-chase perhaps. But I guess we'll worry about that later in the week."
Poor weather could make for a war of attrition, particularly in the forwards where the Irish showed during the weekend that they have the ability to slow the ball down by flooding the breakdown.
The All Blacks management won't name their starting side until Thursday but it doesn't look like there will be sweeping changes.
"It's possible, but the reality is we want to go out and build some combinations and get learnings from last week," Foster said.