"My game's in a good place in the white-ball stuff".
Things like that add up over the years and the momentum, whether from the side winning consistency or individuals feeling they have the measure of a rival, is vital to take into future series or a World Cup. Australia, meanwhile, were the winners of that tournament, but since then, they have clearly ceded some ground in this format.
During the Test series he averaged 16.28 with the bat and 49.50 with the ball - world-class contributions if reversed, somewhat less impressive as they are. The run averages and rates for the England batsmen need to be higher in order to compete with Australia at their home grounds.
What is the team news?In terms of strike rates, three of England's batsmen are among the top four in this list of 21 batsmen.
Just as England appeared to be struggling against a full-strength Australian attack, Buttler found a willing ally in Chris Woakes late in the innings, the seamer making 53 from 36 balls in a match-winning partnership of 113 in 11.5 overs. "We have lads who can come in and do good jobs". With a gruelling schedule it is hard for Australia to regularly field their best ODI line-up, particularly when they want to keep their fast bowling brigade fit and firing for important encounters in the Test arena.
Maxwell flew to Adelaide to join the one-day squad and is likely to miss the Melbourne Stars' final BBL clash at the MCG on Saturday. Graeme Swann believes that England are not "a million miles away from this Australian team, but at times have looked it". Now the only data that matters is how many games they have won.
The numbers that stand out there are England's, in chases. Instead they managed to score just 100 more runs from those 102 balls and lost the match and the series.
Maxwell wants the ODI team to be more aggressive.
As of writing this article, Australia are yet to bat in respond to England's 196, but you'd imagine they will comfortably achieve that run tally. It is in chases, though, that England have been clearly superior.
Opener Jonny Bairstow was caught behind from the bowling of Hazlewood for a duck, and Test captain Joe Root also fell without scoring, caught on the fine leg boundary after top-edging a hook shot from the bowling of Cummins. I'd rather probably be 40 for two than 20 for none.
England pace bowler Mark Wood has admitted that he is uncertain whether his body can withstand the rigours of Test cricket going forward.
"You've got to be a little tougher and got to be a little more boundary-conscious".
The big step forward, however, has been how they have adapted to conditions.