Harmison struggled on a flat pitch in Hamilton, taking just one wicket

Skipper Michael Vaughan admits Steve Harmison's form is a cause for concern as England consider changes for the second Test in New Zealand.

The 29-year-old paceman took 1-121 in the dire 189-run first Test defeat in Hamilton and now finds his place under pressure for the match in Wellington.

"It's a worry. I want to see Steve back to playing how we know he can.

"That's getting the ball going away from the right hander and getting the ball in decent areas," said Vaughan.

Interview: England coach Peter Moores

"He'll be the first to admit he hasn't done that in this game and the sooner we can get Steve to do that, the better."

606: DEBATE The management has shown a lot of patience with him and got little reward for their efforts Chadsman

BBC cricket correspondent Jonathan Agnew shares Vaughan's concerns, and has suggested Harmison has made it impossible for the selectors to pick him at the moment.

Agnew told BBC Radio 5 Live: "Harmison has talked about having things on his mind and in his head as he runs in to bowl.

"But, really, all he should have in his mind is where he is going to put the ball - and nothing else.

"In fact, when you are in the groove and have this elusive rhythm that we talk about for bowlers, even that should come as second nature.

"I think it would be absolutely astonishing if he was picked for the second Test."

As the fallout from England's capitulation in the last Test continues, the tourists looks certain to reshuffle the side, with selector James Whitaker having been asked to delay his return home so that options for the second Test can be discussed.

He'd be a hell of a bowler to face if he's bowling 145-150kph Ross Taylor on Harmison

"The team for the next game obviously needs some serious consideration, which we'll do and we'll look at that over the next couple of days," confirmed coach Peter Moores.

"I think it just makes sense for James to stay out here. He's got no pressing commitments when he gets back - so for him to change his flight and come to Wellington for a couple of days until the start of the Test match made sense.

"When the dust settles over the next couple of days we'll be having conversations, and it makes sense for the selector to be around and be involved in those conversations until we finalise that team for the next Test."

Harmison will be top of the list of topics for conversation after a poor performance.

He struggled for pace and accuracy, bowling just four overs in the second innings, and also failed to bowl any quicker than 80mph for most of the match, a fact not lost on the New Zealanders.

"He has been operating down on the pace he has bowled at," said Ross Taylor, who scored his maiden Test century in the first innings.

"But he'd be a hell of a bowler to face if he's bowling 145-150kph (90mph)."

It would be nice to have a similar surface here in Wellington because I think it's a pointed difference between the two teams John Bracewell on England's ability to play spin

It is the second successive winter Harmison has struggled at the start of a tour, following the 5-0 Ashes whitewash in Australia.

He was allowed to arrive in New Zealand slightly later to allow him to be at the birth of his son, Charlie, and despite a wayward display in last week's warm-up match in Dunedin, he finished with a five-wicket haul.

But Vaughan does not believe either Harmison or Yorkshire seamer Matthew Hoggard, who also finished with only one wicket in the match, went into the Test under-prepared.

"I know I came out with Hoggy, and Steve arrived a few days later, and I felt prepared for a Test match," insisted Vaughan.

"I felt in my own mind that I was ready to play and I'm sure those two would say exactly the same. They probably didn't have the best of games. You can have bad games - that's just cricket."

Stuart Broad is bound to come into the equation in Wellington on Thursday, having impressed during England's one-day series defeat to New Zealand earlier in the tour, and is probably ahead of Lancashire seamer James Anderson in the pecking order.

Anderson, who struggled during the one-day series, was sent to play for Auckland against Wellington in New Zealand's domestic championship this week.

Vettori celebrates after dismissing Andrew Strauss at Hamilton

He finished with 2-95 from 38 overs as his new side slumped to an innings-and-95-run defeat.

New Zealand have named the same 13-man squad, with seamer Iain O'Brien failing to overcome the toe injury which ruled him out at Hamilton.

Coach John Bracewell is considering handing Grant Elliot his debut after the all-rounder hit a century for Wellington against Auckland.

He could take the place of Mathew Sinclair, who scored only 10 runs in his two innings in the first Test.

And with Bracewell convinced that England have a weakness against spin, the hosts are also set to persevere with the twin-spin option of Jeetan Patel and Daniel Vettori.

"It's something that's not normally done in New Zealand. It's an opportunity we took, and I think it paid off," said Bracewell.

"It would be nice to have a similar surface here in Wellington because I think it's a pointed difference between the two teams."