But the former Leeds and England Saxons boss insists that "all his energy" has been focused on securing victory away to France - a feat England have managed only twice in their last eight trips across the Channel.
"France away is a benchmark, going to the Stade de France is one of the biggest tests in world rugby," Lancaster added.
England v France 2001 highlights
"The set-piece is massive challenge. We must make sure we go with a front foot mentality. We've done lots of scrums this week."
Lancaster's omission of Leicester's Toby Flood and Ben Youngs from the starting line-up has attracted criticism from the Tigers' hierarchy.
They formed the starting half-back partnership for all five of England's matches in last year's Six Nations, but Flood was
released back to his club on Tuesday,
while Youngs has fallen to second choice behind Dickson.
Ben Foden; Chris Ashton, Manu Tuilagi, Brad Barritt, David Strettle; Owen Farrell, Lee Dickson; Alex Corbisiero, Dylan Hartley, Dan Cole; Mouritz Botha, Geoff Parling; Tom Croft, Chris Robshaw (captain), Ben Morgan.
Replacements: Rob Webber, Matt Stevens, Tom Palmer, Phil Dowson, Ben Youngs, Charlie Hodgson, Mike Brown.
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