Lambert said: "Will you see the nucleus of all those guys again? I'm not so sure, especially with a lot of them coming through the ranks the way they did.
"You do get cycles in football. What's amazing about all that is the longevity of it - 20 odd years and then all of a sudden it's like a massive hit for them."
He added: "It's like a double hit because with them came a generation of United fans that know nothing other than winning.
"They don't know any differently. A generation hasn't been used to losing football matches."
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