England coach McCullum doesn't expect Ashes hangover from ODI disappointment

Coach Brendon McCullum believes England's batting struggles in the 3-0 one-day international series loss to New Zealand were format-specific and will have little bearing on the Ashes.

One century from Harry Brook aside, England's top order failed to produce sufficient runs in New Zealand to give their bowlers the opportunity to put pressure on the Black Caps.

McCullum, while obviously disappointed at being whitewashed in his homeland, did not think there would be any carry over into the test series against Australia when it begins in Perth on November 21.

"I don't envisage it," McCullum told reporters in Wellington after the third ODI on Saturday.

"Obviously it's a different form of the game, and it's a completely different kind of challenge which we'll be confronted with as well.

"In T20 cricket, we're going really well. I think in test cricket, we've got a pretty good template of where we're at, and I think we've performed reasonably well, albeit we've got a huge challenge in front of us.

"I think one-day cricket is clearly the area we need to improve."

McCullum said England had not yet figured out their batting tempo in one-day cricket, an issue further complicated by the sometimes challenging conditions in New Zealand.

Again, the New Zealander thought that would not be an issue in Australia.

"I think when we do come across the trickier conditions in Australia and test cricket, I feel like we've got a pretty good understanding of how we're going to go about," McCullum said.

"It doesn't guarantee us anything, but it gives us a level of confidence going into that series."

One major plus from the tour to New Zealand was the return to England colours of fast bowler Jofra Archer, who looked in good shape when he played in the