Australia have handed England an opportunity to break their duck on Friday and it's one the tourists can't pass up.
Before Australia - 3-0 up - decided to rest Michael Clarke, David Warner, Brad Haddin and Shane Watson for the fourth one-dayer, I would have urged England to experiment with their line-up and make a few decisions on players.
Now, though, I believe they must play their best team for the conditions - whatever they think that is - and go all out to try and win here in Perth.
England have now lost nine international matches in a row across all formats on this utter disaster of a tour. Put simply, it's time to put that run to bed.
Statistics like those weigh heavily on English cricket but less so on players who haven't played in each of the defeats.
Right now, the Aussies must be looking at Eoin Morgan and thinking 'how come he doesn't get in their Test match side?'
His Test average of 30 is against him - he still needs to learn to keep the ball out - but when it comes to one-day cricket he's England's standout player as he's demonstrated with scores of 50, 106 and 54 in this series so far.
I hate pushing players for Test selection based on their one-day form but England mustn't forget about Morgan if they decide to play a more dynamic brand of cricket in the future.
I've also been impressed by Chris Jordan, who has already put a marker down and been brought into the Twenty20 squad.
If he is to go on and play Test cricket he needs to make sure that his speeds stay up. Bumble spoke about this on commentary the other day, noting that Jordan's first spell is his quickest.
I believe that Mikey Holding went through similar issues when he first started out in the game, so he's not in bad company, and if he can ensure that his second, third and fourth spells are just as quick as his first then he'll go a long way.
It's great to see him up for the fight on his first tour of Australia.
With players like Joe Root, Ben Stokes and Gary Ballance finding their way in Test cricket, Luke Wright leading the charge in the Big Bash and Steven Finn to come back into the fold at some point, it's worth taking a step back at times like this to try and put things into perspective.
No one - the coach, players or the back-room staff - is trying to hide from the fact that the last few months have been a shemozzle. The Champions Trophy final and last summer's 3-0 Ashes win seem a very long time ago.
Now it's a case of Alastair Cook and his players getting through the remaining games - and hopefully winning some of them - and focusing in on Twenty20 cricket ahead of the Twenty20 World Cup.
I'm sure that some decisions about the future of English cricket are being made behind the scenes but this isn't the time to finalise a blueprint and make it public.
First there must be a period of reflection in which Paul Downton sits down and has a full debrief with the selectors, Andy Flower, Alastair Cook and Ashley Giles.
England will need to come up with some answers pretty soon because the tour to the West Indies and that World Twenty20 aren't far away.
That will be a new era - and that's why it's important that people step up and show what they can do in the remaining 10 days of this tour.
Watch the fourth one-day international between Australia and England from 3am on Sky Sports 2 on Friday.