Impressive Manchester City winger Johnson, who replaced Theo Walcott after the Arsenal forward injured his ankle in the build-up to the opening goal, also praised Rooney for his professionalism.
"He's a football player and when he's out on the pitch everything gets forgotten about," stated Johnson.
"He is there to do a job for his country and he showed that by coming back and scoring a vital goal for us."
Bent, who scored England's third goal two minutes from time after replacing Defoe in attack, claimed Rooney's display in Switzerland - and the win over Bulgaria - showed that the striker is "back to his best".
"He is a fantastic player and one that England need out on the pitch firing like he was today," said Bent.
"We've come to expect that kind of performance from him so when he's not 100% people notice it.
"But tonight he was rip-roaring and the other night he played really well."
Capello was delighted with his team's performance in the first half as they dominated the Swiss and could have gone in more than one goal up at half-time.
Rooney (left) congratulates Johnson (right) on his goal
"The performance of the team in the first half was one of the best of the last two years," commented the Italian.
"To play here against Switzerland is not easy. The fans, the stadium, the pitch, everything makes it very difficult to play here.
"But we played very well and with confidence and that is very important."
England eased off after the break but their showing was still in stark contrast to a string of poor performances in the 2010 World Cup in South Africa.
Asked about the difference, Capello responded: "You know my answer. We are really good in this period because we are fresh.
"All the players can run, their minds are free. Everything they try to do comes off."
And captain Gerrard believes the two recent displays are positive early steps in the process of rebuilding confidence following the disappointing showing in South Africa.
"I think all the players realised that over in South Africa it wasn't good enough so we needed to re-group," claimed the Liverpool midfielder.
"We need to stick together and try and raise the performance levels. I think over the last two games we have certainly done that.
"I just think we've re-grouped. Everyone was hurt and disappointed by letting the nation down over in South Africa.
"We know we have to put it right but it's important not to get carried away by these two results.
"It's going to be a long time and a long process before we're really back."
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