The Blues were hot on the heels of the Red Devils in the race for the Premier League title, with the trophy only decided in the final match of the season.
The Chelsea squad have many of their stars into their 30s and Ferguson feels this age factor is not something a side can build upon.
"They are an experienced side," said Ferguson. "I'm not saying necessarily that they're old because with the modern-day training methods, you should be playing in your 30s.
"What I'm saying is that I don't see outstanding progress coming from a team that's in their 30s."
Ferguson also challenged Luiz Felipe Scolari by saying it will be difficult for the former Brazil coach to better the record of his immediate predecessors.
"I'm not concerned about Chelsea," he added. "Avram Grant did a good job and Mourinho won the title two years in a row and beat us in the FA Cup final.
"So there's no-one who can improve on (Jose) Mourinho's record really."
Ferguson knocks Chelsea squad
by Essential Sports
Updated: July 23, 2008, 4:41 AM EST 24 comments
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The Blues were hot on the heels of the Red Devils in the race for the Premier League title, with the trophy only decided in the final match of the season.
The Chelsea squad have many of their stars into their 30s and Ferguson feels this age factor is not something a side can build upon.
"They are an experienced side," said Ferguson. "I'm not saying necessarily that they're old because with the modern-day training methods, you should be playing in your 30s.
"What I'm saying is that I don't see outstanding progress coming from a team that's in their 30s."
Ferguson also challenged Luiz Felipe Scolari by saying it will be difficult for the former Brazil coach to better the record of his immediate predecessors.
"I'm not concerned about Chelsea," he added. "Avram Grant did a good job and Mourinho won the title two years in a row and beat us in the FA Cup final.
"So there's no-one who can improve on (Jose) Mourinho's record really."