Coach Duncan Fletcher says England have been lucky to pick new players who have made an instant impression.
Fletcher has found a good reason to wear a smile on his face
Geraint Jones and Andrew Strauss are the most recent in a line of new faces who have become important members of a Test squad who now tend to win.
Fletcher said: "To get the timing right when you're bringing new guys in is just about impossible at times.
"But sometimes you are lucky and a guy comes in on top of his form and carries on taking wickets or scoring runs."
Fletcher said he believed the new players had done well because they had a suitable amount of experience before making their Test debuts.
"I think the age of the new guys and the fact they are in their mid-20s might be an important part," he said.
"I think the key is that they've gone away and realised what is required - they realise what they've got to do to be a Test player.
"I'd say the gaps have been filled more quickly than I expected.
"I see a young bunch of players coming together who realise their potential."
All the players have accepted a new hard work ethic introduced by captain Michael Vaughan this winter, which included visits to the gym even after a hard day's cricket.
Fletcher said: "They were prepared to accept, and we made sure we drove it home, that to get somewhere it's not just about having the talent."