Lineout general Geoff Parling admits England need to address the issue of their misfiring set-piece that is currently ranked fifth out of six in the RBS 6 Nations championship.
A sizeable victory over Italy at Twikenham on Sunday would leave Stuart Lancaster's men with one hand on the trophy and a chance of a first clean sweep in a decade.
And although England's set-pieces has not quite fired on all cylinders during the tournament, Parling insists they cannot continue to rely on character to see them through.
The Leicester Tigers man is demanding an improvement at home to the Azzurri if they are to remain on the Grand Slam trail.
"Italy's forwards will be physical and they will get stuck in. They're good at spoiling your ball and making life difficult, so we're in for another big test," Parling said.
"Against Ireland we lost three lineouts, which was frustrating, and against France we lost a couple. It's down to detail.
"I'm not a 4.30am man but I do spend a lot of time thinking about the role, analysing and at times worrying about the detail.
"I force myself to get away from it now and again. I go home, change some nappies, spend time with my wife and family. But can anyone flick a switch? This is my job and a job I love.
"I'm not concerned. In terms of our lineout defence we don't have a problem but we want to be known as a pack who can take it to any team.
"There are little bits of detail we need to attend to if we are to be right up there. I would much rather have to work on little bits of detail than work on character.
"When your backs are against the wall, which they were at times against Ireland and France, character saw us through.
"You will always be able to fix up little bits of detail, you cannot fix character if you don't have it."