Namibia a bigger deal than England's WC fate: McDonald

Australia coach Andrew McDonald insists he is not plotting any further role in England's downfall at the Twenty20 World Cup, despite holding the nation's old rivals' fate in his hands.

Should England defeat Namibia and Oman, their hopes of reaching the last eight could hinge on the outcome of the final Group B game between Australia and Scotland.

With net run-rate set to be the deciding factor there is even a scenario in which McDonald's side and the Scots could know the exact equation needed for both to go through at England's expense.

But, asked if rubbing salt into the wounds of their Ashes rivals was a factor for his squad, having already hammered the English by 36 runs in Barbados, McDonald brushed away the suggestion.

The coach insisted he was solely concerned with getting a win against Namibia on Tuesday (Wednesday AEST).

"We're not really focused on England and where they're at. We played them, we've moved past them and we'll do what's important to us," he said.

"We haven't got the option of talking about that at the moment. Namibia, first and foremost.

"England have clearly got their own work to do in the next couple of games.

"It's always difficult, you're always dependent on other results - it's not a nice situation to be in.

"But that's for them to work through, not us.

"We've got Namibia in front of us and that's our focus, not England."

Steve Waugh's Australia team famously went with go-slow tactics against West Indies in the 1999 one-day World Cup, in a bid to knock New Zealand out of the Super Six stage.

The Aussies could even go as far as losing to Scotland on Saturday (Sunday AEST) without it hurting their own campaign.

Net run-rate and points are not carried from the group stage to the Super Eights, while the tournament's format means there is no difference between finishing first or second in the initial phase.

McDonald has said he is open to rotating his XI against Scotland should Australia beat Namibia - a prospect that could ring alarm bells for England skipper Jos Buttler and company.

"We need a win (against Namibia) to guarantee ourselves a way through," McDonald said.

"Once we've firmed up that qualification, then we can start to look at (resting players) if we feel like it's necessary," he said.

Matt Wade has been reprimanded by the International Cricket Council for showing dissent to an umpire in Australia's win over England.

Wade was visibly frustrated when a delivery from Adil Rashid was not called a dead ball, after music began blaring around the Barbados Stadium as the bowler completed his action.

Wade will not face a ban over the incident, but has been issued with a demerit point on his record.

- with AAP