Rangi Chase believes having consistency in team selection can help England clinch World Cup glory.
The 2011 Super League Man of Steel, who controversially switched his allegiance from New Zealand two years ago, feels he has earned his place in Steve McNamara's side after a difficult start to his England career.
The Salford-bound star will win his 10th cap when he partners captain Kevin Sinfield at half-back in Saturday's quarter-final against France, and Chase is feeling the benefit of being given time to establish his place in the side.
"You can't chop and change your half-backs too much because they're pretty crucial to what the team does," Chase said.
"We've earned our spots. I feel like I've earned my spot. People will say otherwise but it doesn't really matter.
"I'm happy with the way I'm going. There are still a few things to work on but I'm finding my feet. As the games have gone on, I'm getting more comfortable in my role.
"Because we're playing better as a team, it makes it easier for me I think.
"All combinations take time but me and Kev seem to be getting better and better each week. Hopefully we can keep on improving and get to our best."
McNamara resisted calls to select Huddersfield half-back Danny Brough, who has steered Scotland into the last eight, while Melbourne stand-off Gareth Widdop was also overlooked.
The England coach has stood by the pairing of Chase and Sinfield, insisting he had no need to split up an impressive partnership.
"I think they have been really good for a long period of time," McNamara said. "They've had some chances to be consistent together and that certainly helps in terms of a combination.
"As with all the great half-back combinations at club or international career, it's about spending time with each other.
"You look at the Australian team with (Johnathan) Thurston and (Darren) Lockyer and Cameron Smith and (Billy) Slater. They took out Lockyer and put (Cooper) Cronk in.
"Some of those players play a lot together at club and representative level and it pays dividends.
"I am pleased with Kevin and Rangi but I'm also pleased with the contribution of the others as well."
Meanwhile, Chase warned his side not to take France lightly after Richard Agar's team showed some fighting spirit in their 22-6 defeat by Samoa in Perpignan on Monday night.
England scored 92 points in back-to-back internationals against France in 2012, but Chase said: "I don't think what has happened in the past couple of years will have any bearing on what goes on in this competition.
"The French are always physical. They are always tough opponents and you always have to be on your game to beat them. They will play with a lot of pride and passion but I'm sure we'll match them in that department.
"It's do or die for both teams and it's going to be intense."