The tourists won their Twenty20 series against the Black Caps 2-1 with a 10-wicket win in the deciding match yesterday.
The one-day captain told Sky Sports News: "Clearly any win against pretty much the same opposition you're going to be playing is helpful. It's obviously a different format, so not that relevant. But it's great for the guys' confidence.
"[The players returning to the side] haven't had a game to practise here. But they're world-class players who've played here before. So it shouldn't be too much of a problem, and I expect them to be able to adapt well.
"It's quite clear Jos [Buttler] has done really well - in those two one-day games he played in India and those Twenty20s, he's been fantastic. So he'll be getting the first go tomorrow. He deserves his chance to take it on, and I've been very impressed with the way he's handled himself."
England face New Zealand in Hamilton tomorrow.