Australian opening batsmen Aaron Finch scored his 9 century in ODI and also crossed 3000 ODI runs landmark. "After that, a line was drawn in the sand and we were given clear directives that the goal was the 2019 World Cup".
But Finch reached his ninth ODI century - his fourth against England - and Marsh (50) posted his 10th half century in a partnership which first restored the balance, then gave Australia the upper hand.
He said: "I know they had a hard run with weather in the Champions Trophy, they didn't even complete a full game against us, and certainly that was a struggle for them".
An Aaron Finch century was the cornerstone of an imposing Australian total in the first one- day global against England at the Melbourne Cricket Ground on Sunday.
The ECB, however, finds itself in a hard position, for to remove Bayliss now would be to risk so much of the good work that he has done in the white-ball formats.
Both teams are vastly different to their Test line-ups, with a number of limited-overs specialists coming in as they start to prepare for next year's World Cup.
Since Bayliss took over in May 2015, England have won only 15 of his 38 Tests in charge (along with 18 losses and five draws). If they can put the disappointment of the Test series away, they can be very dangeroud against Australia.
In other words, the European Central Bank are effectively hoping to bumble along with Bayliss until that glorious moment when - all being well - he lifts the World Cup and rides off into the sunset, main mission accomplished.
SCOTT BARBOUR GETTY IMAGES Mark Wood of England celebrates after dismissing David Warner
The Australians will be overly confident after their 4-0 demolition job in the recently completed Ashes.
Asked if they might enjoy better results than their Test colleagues, he said: "I hope not".
"He feels that whenever he's had a break in the last couple of years, it's always been a T20 series". Or can they cope up with the absence of Stokes in Australia? "They're good one-day bowlers and a good one-day outfit so it's a good challenge".
Where England could make a difference though is at the top of the order.
Bayliss's laid-back approach has fitted in well with a group of young, exciting players who have shone in an environment that has promoted aggression and flair.
England: Jason Roy, Jonny Bairstow, Alex Hales, Joe Root, Eoin Morgan (capt), Jos Buttler (wk), Moeen Ali, Chris Woakes, Adil Rashid, Liam Plunkett, Mark Wood.
The series against Australia will be interesting if only to see how England respond to the Ashes defeat. Smith has got an inside edge.
For Bayliss's sake - and that of the European Central Bank - one must hope that they do.