James Mortimer 05.Dec.2012Getty Images
While the Wallabies have had Wales measure recently, the margin of victory suggests there is little between the two sides, while England is riding a crest of a wave since defeating the All Blacks in London.
The Wallabies pool has been classed as the 'group of death', but Deans said that despite the pedigree of the group, there was no such thing as an easy path in the Rugby World Cup.
"When you look at the sides and you look at history, that's an easy suggestion to make (that we are in the toughest pool), but they're all tough," Deans said.
"The fact of the matter is once you get into the tournament, there's no such thing as an easy draw."
Deans said that the timing of the draw, three years out from the tournament, meant that it was difficult to rate any sides chances.
"We've seen in recent times Test match rugby is about in-the-now, it's about on-the-day," he said.
"Nothing that's happened before has any relevance on what's coming after, so we just got to keep working our way through the program."