The triumph, England’s first in a global 50-over tournament, capped a four-year period in which they went from being dumped out of the previous World Cup in the group stage to No 1 in the rankings.
“In the one-day game we took the reins off [the players] and said ‘go out and express yourself, see how good you can be’, knowing full well they were going to fall over and have bad games,” said Bayliss, who formed a successful axis with captain Eoin Morgan.
“You learn from the mistakes you make and I’d like to think, over a period of time, that when they were knocked over slowly they started to work it out. The proof was not just the World Cup win but the fashion in which we did it.
“We have played on very flat wickets for the last four years but we got to a World Cup final on wickets with a bit in them. We were able to adapt, which is what we were about the whole time. We explored the ceiling and then, through experience, pulled it back when we needed to.
“We went through a period in the middle of the World Cup where it didn’t go as we wanted but we stuck to our guns and when the heat was on – having to win four in a row against four of the better teams in the competition – we were able to do it.
“That was the cherry on the top. To see the joy on the players’ faces, the other coaches’ and management, and the English cricket fans in general. It’s something I won’t forget for a long time.”
Bayliss also spoke about why he gets on so well with Stokes, whose fine summer included a match-winning unbeaten 135 in the third Ashes Test at Headingley last month.
“He had a confidence about him,” added Bayliss.
“He obviously had a lot of skill but the way he went about his practice, you just knew he that wasn’t going to take a backward step in any sort of contest, whether batting, bowling or in the field.
“He wasn’t afraid to express his views either, even at times when he thought I was wrong.”
On Stokes missing a large chunk of cricket after the Bristol incident in September 2017, including the previous away Ashes series, Bayliss added: “I tried to keep a fairly philosophical view on it, tried to panic as little as possible.
“From it, I think we have seen Ben, and a lot of the other guys, grow and mature as human beings. They are good people and that’s what you want to see.”