"In the first 20 minutes tonight we were fantastic. I don't think we've ever been so strong and compact as we were at the start of this game."
And the Italian hinted he would give the fringe players in the squad the chance to impress in the final two qualifying games and he added: "I think I will give others a chance and have a look at things.
"I don't need to decide now but it is an option, yes."
Captain John Terry was equally pleased but echoed his manager's sentiments to guard against complacency from now on.
"When we play like that, pressing opponents and working the ball, we're a difficult opposition for any side," said the Chelsea defender.
Terry proud to lead team to World Cup finals
"But don't forget, it's taken a year or so for us to get this good and we've still got a way to go to get to where we ultimately want to be. But we're on the right track."
Terry meanwhile claims to have been spat at by Bolton striker Ivan Klasnic during the second half of Wednesday's victory.
However, the 28-year-old insists the incident should not detract from the joy of qualifying for the World Cup.
"It's not a nice situation," said Terry.
"He is the first person who has ever spat at me. It's one of those things but let's not let it ruin a massive night for us."
Two-goal midfielder Lampard, though, insisted the players should be allowed to enjoy their qualification and commented: "The way we've played tonight typifies our campaign I think.
"We've got a long way to go to win the whole thing, obviously, but we've qualified and we're there. It's nice to get excited at the moment and we will celebrate this, I'm sure."
Croatia boss Slaven Bilic was left in awe of England's performance and believes that if Capello's side can continue in the same vein then they will be contenders to win the World Cup next summer.
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