Collingwood seeks improvement
Paul Collingwood admitted England had been outplayed as Australia romped to an eight-wicket win in Cape Town.
The better side won," he said. "There are areas we can improve on. It was a disappointing performance but we are through so it gives us a chance to.
"We can play better than that, we realise that, but we're still learning.
"We didn't get enough runs on the board and if we're going to progress in this I think we're going to have to be a little bit braver in our strokeplay."
"Quite a lot of batsmen got in and didn't go on to make that big total.
"It was always going to be hard to defend a total like that on a pitch like that against a side like Australia who played fantastically well."
England, having beaten Zimbabwe on Thursday, qualified from their group in second place and now move into the Super Eight phase with a pool comprising South Africa, New Zealand and one other.
That begins with a match against the hosts on Sunday and Collingwood added: "Hopefully we can put them under pressure."
Counterpart Ricky Ponting was pleased to quickly cast aside the embarrassment of defeat against Zimbabwe.
"We're a fair bit happier than we were a couple of days ago," he said.
"We knew that we had some better cricket in us than we had the other day and it was a pretty comprehensive win.
"We bowled pretty well and did the job with the bat so it was pretty satisfying.
"The bowling group was where the game was won, we fielded well and took our chances and took our chances with the bat as well. Gilly and Matty were very good."
Ponting added that Kevin Pietersen's comments on Thursday acted as extra motivation for his side.
Pietersen initially said it would be "nice to send Australia home early," before attempting to play down the severity of his remarks. "A lot of the guys in this side have been playing cricket a long time and unless you can back up comments they don't mean anything," Ponting said.
"They had their chance to do what he [Pietersen] said they wanted to do, which was to try to humiliate us, and if anything they were the ones who walked off humiliated."
Collingwood was a paragon of diplomacy and said: "Kevin's obviously Kevin. We just wanted to go and win the game."