Capello has drawn criticisim for his comments, particularly over Juventus' domination.
"Capello is right to say that we have lost quality, because our league was based on individuality and not on the game," said Sacchi.
"Borussia Dortmund, for example, invests much less than Juve, Milan or Inter, but it is competitive.
"Capello is right, as evidenced by the results, look at the Champions League and Europa League."
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