No mixed emotions for Bayliss

He's the Australian who was given just six weeks to plot his countrymen's downfall and Trevor Bayliss says he doesn't feel any mixed emotions having helped win the Ashes while wearing England colours.

After being persuaded to swap Sydney for London by England's director of cricket Andrew Strauss in May, the former NSW coach only met his new players less than two weeks before the opening Test in Cardiff.

A four-day trip to Spain allowed Bayliss the chance to get to know skipper Alastair Cook.

In that time he has helped transform England, who are now unrecognisable when compared to the team held to a 1-1 draw by the West Indies in April under former coach Peter Moores.

That same Windies team were brushed aside 2-0 with the minimum of fuss by Australia ahead of this series and Darren Lehmann's men were widely expected to do the same to Cook's side and win a first Ashes on British soil since 2001.

Re-live the moment the Ashes urn returned to England

But under the undemonstrative Bayliss, whose relaxed approach and insistence on allowing players to figure out their own game, a youthful England team have flourished.

"If the coach is showing his emotions then and making comments that aren't necessarily helpful it just makes the players even more nervous," Bayliss said.

"They are already nervous and don't need that negative feel from others as well. If the support staff are calm it allows them to be free of extra pressure."

Despite contributing to an Australian defeat, Bayliss said he was happy to lap up the applause from a rapturous Trent Bridge crowd on Saturday.

"I'm not going to gloat. Not in front of them (the Australians) anyway," Bayliss said with a smile.

"I know how much they will be hurting in that change-room.

"But to be honest, especially when the boys took that last wicket and that lap of honour, the hairs on the back of my neck were standing up, which is a good sign."

Cook, whose has come under fire for his captaincy style in the past, has also benefited.

England's record run scorer admitted after the fourth Test victory at Trent Bridge that he'd been too stubborn early in his career and a declaration 10 minutes before lunch on day two at Trent Bridge was a tell-tale sign of Bayliss' influence.

Cook says he's been surprised by England's Ashes victory

But it was Bayliss's inside knowledge of the Australian NSW players such as Steve Smith, David Warner, Mitchell Starc and Josh Hazlewood that really helped England.

All four players had their moments during the series, but only in flashes, and Bayliss revealed he'd discussed at length the strengths and weaknesses of the Australian side.

"We sat down in Spain and had a bit of a chat and I gave them a little bit of background and my thoughts," Bayliss said.

"I don't know everything there is to know about the game of cricket, but Cook, (James) Anderson, (Stuart) Broad, (Ian) Bell have played against these guys more than I have.

"Sometimes when you play with them you don't necessarily think of their weaknesses so a lot of senior players had a lot to do with it.

"I asked a lot of questions of them, how they would bowl to certain players and suggested one or two things and all credit to them they've done a fantastic job."

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