Stuart Lancaster felt his team had been "outstanding in every department" after they beat Ireland to secure second place in the 2012 Six Nations.
The interim England boss saw his side seal a 30-9 win thanks to a second-half penalty try and a score for Ben Youngs, with Owen Farrell kicking 20 points.
"I'm really, really pleased with the performance," Lancaster told BBC One.
Asked how much he wanted to remain as England boss, he added: "That's for others to decide."
But Lancaster admitted: "If you said to me I'd be walking around Twickenham applauding 82,000 people with a group of lads I respect and a management group I respect, I would have taken it."
Lancaster took charge on a temporary basis after a disappointing World Cup campaign by England and confirmed he was delighted with the progress made during his time in charge.
"At the outset there's a long-term plan, and that revolves around giving a load of young players some experience," said Lancaster.
"I think a lot should be made of their self-belief - they believe in the team, they believe in the direction they're going, they believe in the coaches and it showed today."
Number eight Ben Morgan produced another powerful performance on only his third start in an England shirt.
"Performing like that against a tough, tough Ireland side is just incredible," he told BBC Sport.
"The group has come together, the team that Stuart has brought in for us has made us grow."
Assistant coach Graham Rowntree said England had been "reborn" under Lancaster.
"It's hard to think about the World Cup because it's such a long time ago," added the former England prop.
"We're still not the finished article and there's loads more to come.
"I've never worked with such an energetic group of young players who just want to do well."