Paul Collingwood (right) will take charge of the Twenty20 team
Captain Andrew Strauss backed England as an outside bet to win the World Twenty20 in June following their 2-0 one-day series win over West Indies.
A commanding display led the hosts to a 58-run victory at Edgbaston.
And Strauss, who will play no part in England's World Twenty20 campaign on home soil, believes his improving side can impress in the competition.
He said: "We are a good outside bet. We are playing with confidence and in our own conditions have another edge."
England racked up 328-7 from their 50 overs to record their sixth-best total in one-day internationals, with Strauss (52), Ravi Bopara (49), Matt Prior and Owais Shah (75) all in excellent form.
Any hopes of a West Indies renaissance evaporated when Shivnarine Chanderpaul was dismissed for 68 as James Anderson collected 3-58 in another fine England bowling display.
"We were excellent with the bat, especially the intensity running between the wickets," added Strauss.
"The way we bowled in Bristol and the way we batted here, we put them under pressure from ball one.
"We did not let up in any stage in the one-dayers or Tests. I'm delighted to win the series, it builds momentum for the summer."
Man of the match Prior scored his highest one-day score batting at three, an innings that he hopes will cement his position in the side.
"My one-day stats are not something I am particularly proud of at the moment," he told BBC Radio Five Live.
"But I have a huge amount of belief as a one-day player.
"I have been previously used up the order, described as a pinch-hitter, but I think of myself as more than that.
"It was nice that Andy Flower and Andrew Strauss told me to play as a batsman, that gave me a lot of confidence."
West Indies, meanwhile, were left to reflect on a disastrous tour, with captain Chris Gayle pulling no punches in his assessment of the past five weeks.
"It has been one of my worst experiences as a West Indies player," he revealed.
"The way we went about it wasn't the best but at the same time you have to give credit it where it is due and England set games up well.
"This was a chance to get testing conditions and improve in them.
"It didn't work, we are disappointed with the loss of both series but at the same time it has given us opportunity to be ready for the Twenty20."