Eddie Jones is looking for the next Jonny Wilkinson to come through and keep pushing England on after their Six Nations Grand Slam success.
With the tournament already won, a 31-21 victory over France in Paris on Saturday night marked a clean sweep in Jones' first campaign in charge.
However, he is keen to keep testing his squad and insisted the true catalyst for success will be the emergence of a hungry aspiring England star who wants to make his mark, just like Wilkinson did.
The former England fly-half kicked the winning drop goal as his side lifted the World Cup in 2003, beating Jones' Australia side in Sydney.
"We need a few young guys to come through to really push the envelope," Jones said. "We need some guys to come in and say that this isn't good enough and lift the level again so I'm looking for those guys, like a young Jonny Wilkinson.
"The 2003 lot talk about when Jonny came into training as a young kid and turned the Bunsen burner up.
"The whole level of training increased because he had no fear and he wanted to be No 1 in the world. I need to find a couple of those kids. We'll find them."
It has taken Jones 120 days to transform virtually the same squad that finished Six Nations runners-up four years in a row and that slumped to a group exit at the World Cup into the Grand Slam winners.
But the Australian is not satisfied with success in Europe and is ready to guard against complacency by demonstrating his ruthless streak in selection if needed ahead of the summer tour to Australia.
When asked where the championship clean sweep ranked as an achievement in his career, Jones replied: "Nowhere because it's going to get better with England.
"It's fantastic to get a Grand Slam and fantastic to win the Six Nations, but we want to be the No 1 team in the world. To do that we have to go down to Australia and beat them.
"I'll make sure the players don't get ahead of themselves. It's easy to do that. I've got the greatest cane in the world because I pick the side.
"If anyone gets too far ahead of themselves, they won't be in the team. That's how you keep growing."