Duckett watched from home as England's defence of the crown they won amid much fanfare in 2019 went badly awry, losing six of their first seven fixtures before claiming a couple of consolation wins.
England's misery has led to speculation of a reset going forward, with only half a dozen of the contingent from India out in the Caribbean for an ODI series that starts on Sunday in Antigua.
Duckett is one of the beneficiaries of a number of more established stars being rested, but he was adamant on Thursday that England do not need to make adjustments to a blueprint that served them so well for many years.
"We have watched how England have played cricket over the past eight years and one bad five-week spell does not define a team," Duckett said.
"It's probably been the greatest white-ball team ever.
"If we can go and play how they have played over the past eight years or even half as good, that will be an achievement."
"I don't think the approach is going to change because of how the World Cup went."
Captain Jos Buttler, batter Harry Brook, allrounders Liam Livingstone and Sam Curran, and fast bowlers Gus Atkinson and Brydon Carse are the England players out in the West Indies who were at the World Cup.
Fringe players like teenage legspinner Rehan Ahmed, allrounder Will Jacks and uncapped quick John Turner now have an opportunity over three matches in the next 10 days.
"We don't feel pressure in the slightest," said Duckett. "Fresh is a good word. A group of players who can go and showcase what we can do.
"But for each and every one of us, it's important to perform. I need to go and prove that I'm good enough to be on this team and so do the other guys."
Duckett has cemented himself into England's Test team as an opener but even though he is renowned for his attack-minded mentality, he has been capped in just eight ODIs and 11 T20s in seven years.
At 29, he could be entering his peak and a mainstay in all three formats but Duckett, who is expected to bat in the middle-order this weekend, is refusing to taking anything for granted.
"I'm genuinely thinking about the next three weeks," he added. "I know how difficult it is to stay in a side when there's this many players."
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