Ferguson feels it is what happens from this point forward that will determine whether he makes a success of the job.
"There are similarities to the time when I came down from Aberdeen," he reflected.
"I had achieved some things at Aberdeen. That helped me.
"It is the same for Villas-Boas. He won the double last year with Porto and also the Europa League.
"That achievement will stand him in good stead in terms of the start to his tenure at Chelsea.
"After that, the impression the players will get from him, in terms of his knowledge of the game and his man-management skills, is all in the future.
"He has had a good start though."