Blackburn Rovers manager Sam Allardyce believes that Chelsea made a mistake by giving Andriy Shevchenko very little time to settle down in the Premier League.
Allardyce says that the situation is similar with Rovers` new defender Michel Salgado, who needs time to adapt to the physical nature of football in England.
"I give you the perfect example," he told The Lancashire Telegraph.
"This [Shevchenko] wasn`t a young man, this was an old, experienced player.
"Because Chelsea put him in too quickly, and because he wasn’t ready, he became a complete flop – and that was Andriy Shevchenko.
"That was £30 million and however much grand a week. They continued to play him because he cost that much when he was never ready to play in the Premier League.
"It was far too quick for him, far too physical and the lad`s confidence just drained away. He never, ever got to it.
"It is the same with Michel Salgado – he found it tough at Everton.
"Now he knows what it is all about and you have to build them in slowly, no matter how young, old, or experienced you are."
The 33-year-old right-back was released by Real Madrid during the summer, and joined the Lancashire-based outfit after impressing Allardyce during a trial.