"If you want to make sure you win something, you need a strong squad," said Ferguson.
"That has paid dividends for this club, and others who have the same mentality.
"The players understand it when they are left out from time to time but it doesn't mean they accept it.
"They might do three days afterwards or three days before. They might know it has to be done and understand the mechanics of it.
"But they don't like it. I don't mind that.
"I would rather that than players who are quite happy to sit on the bench."