Eoin Morgan does not suspect flagging attitudes will hinder England when they start to ramp up their World Cup preparations against Australia over the next month.

The majority of England's squad may still be reeling from their 5-0 Ashes whitewash but Morgan - one of seven new names to join the touring party for the five-match one-day international series - knows they cannot afford to dwell on the mistakes of the longer format.

That may be easier said than done - with barely a week passing between the 281-run fifth Test defeat in Sydney and Sunday's ODI opener in Melbourne - although Morgan has not sensed any malaise in the squad.

While the rigours of duty have at least physically told on Stuart Broad, who will be rested for the first two games of the series, Morgan believes everyone else is fit and ready to go toe to toe with Australia.

That is just as well according to the left-hander, who knows the upcoming five games will provide an important building block ahead of next winter's World Cup on these same grounds.

"There's about 400 days before the World Cup starts and it starts here in Melbourne," he said.

"It's really exciting and the platform we build here during this series is really important.

"It's important that we do learn from any mistakes that we do make and build confidence down in this part of the world."

Asked if the players he has joined were showing any signs of being scarred by their Ashes defeat, he added: "Absolutely not.

"The guys are good. We've had six or seven fresh faces come into the side who have brought a lot of energy, including myself.

"The guys are chomping at the bit to get involved. We've had a bit of time off and the young guys coming through are keen to score runs and take wickets.

"A lot of guys are excited to get this series started."

An England and Wales Cricket Board (ECB) spokeswoman confirmed to Press Association Sport that Broad's absence was only to allow him time to recover from his Ashes exertions and that he is due to be back for the third game in Sydney on January 19.

The 27-year-old was England's leading wicket-taker in the Ashes defeat and one of the few tourists to finish the series in some credit.

With James Anderson having returned home for his scheduled break, and Graeme Swann retired, Broad's spell out means England will initially rely on an inexperienced bowling line-up.

Tim Bresnan and Steven Finn are easily the most capped front-line seamers, although the latter's career has stalled of late.

Finn was the only England quick who did not play in the Ashes and spent large parts of Friday's net session in consultation with coaches Ashley Giles and David Saker, as well as skipper Alastair Cook.

Any issues Finn might have will now likely have to be ironed out in combat with Australia, rather than in training, with no other quick in the squad boasting more than late call-up Chris Woakes' 13 England ODI appearances.

It is a situation Morgan believes Finn can overcome, despite admitting he got little chance to see how he had been progressing in Friday's training.

"I haven't seen very much of him. This has been our first training session as a squad," he said.

"I know Finny has been working really hard in the Test team and hopefully he'll make contributions along the way in the one-day series."

Kevin Pietersen, whose England future remains the centre of much debate, has also been rested for the series.

Morgan believes the absence of England's more prominent names can work in their favour, though, as they look to blood their younger players ahead of the World Cup.

That tactic paid dividends during last summer's 2-1 ODI series defeat against Australia when most significantly Ben Stokes, and Boyd Rankin, proved their credentials for an Ashes call-up.

Morgan hopes another young gun can take the opportunity to press their claims for a World Cup place over the next few games, suggesting already that the selectors would have a difficult task narrowing the squad down to 15 players.

"I think with the hectic nature of the past 12 months with Test cricket there have been a couple of one-day series where guys have been rested here and there and created these opportunities," he said.

"It's fantastic for the squad that the guys coming in have been doing so well. It's allowing us to build a great base, because we will be able to take 15 to a World Cup.

"It's going to be a tight squeeze picking 15 cricketers, because we could potentially take 20.

"The last series that we played, we played against a very formidable Australian side and, as an inexperienced side, we certainly put up a good fight.

"We were disappointed not to win that series.

"Looking toward the 2015 World Cup, there's a long time and a lot of cricket to be played, but certainly we have a good platform with the group of players that we have."