"Last weekend wasn't good enough, it was poor, but we have had a really good open and honest review," George told reporters.
You'll see a very different England team on Sunday."
George, a British and Irish Lion and veteran of many big games with Saracens, said the England team were embracing the occasion as they seek to improve on their run to the final four years ago.
Fiji have improved their all-round game, particularly the scrum, but their lineout still looks vulnerable and is an area England expect to dominate.
"The way Portugal targeted their line-out was something that was very interesting and especially how they go about it," George said.
Persons:
Jamie George, George, Danny Care, George Kruis, Steve Borthwick, Elliot Daly, we’ve, Mitch Phillips, Ed Osmond
Organizations:
Samoa, Fiji, Irish Lion, Saracens, England, Twickenham, Thomson
Locations:
MARSEILLE, France, British, Fiji, England, Portugal