England boss Fabio Capello believes his biggest task is to translate club performances onto the international stage.

"This is my toughest job, understanding why this happens and solving the problem," said Capello, who was speaking at an event organised by England team sponsors Nationwide Building Society.

"This is the problem that all my predecessors have had. I'm hoping I will be able to understand why and rectify it.

"Because looking at the performance of the English teams in the Champions League then at the moment the Premier League is the best in the world. Absolutely."

Capello added: "I can't perform miracles, these are the players we have and I can only call up the players we have.

"Creating new players is a long process, it takes a lot of time and you need talent to begin with. It's not going to be fast.

"People talk about introducing quotas of foreign players but it's not for me to decide, irrespective of what my thoughts are on the matter."

Capello also said being England manager is his "final challenge" in football - he has previously stated the job would be his last.

He said: "I have enjoyed managing all the teams I've managed. I have great memories of my time at Roma, Juventus, Milan and Real Madrid. Each one of them has been a challenge. But I look at this as my last, my final challenge."

The England manager, renowned as a tough disciplinarian, has also told his own players they must behave themselves off the pitch if they want to be part of his England revolution.

He said: "I believe players off the field should behave decently and normally and not do things that create problems and headlines.

"Normally I'm not influenced by their behaviour off the field but obviously if some player were to do something particularly big or out of the ordinary I would have to consider my actions."

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