Ferguson discussed United's American owners during a lecture at Harvard Business School:
"The Glazers decide. They have generally been very supportive and are very low-key.
"If I owned United and they won the league, I would be over the moon.
"I remember when I played with Rangers, when the directors were under the shower with their clothes on, dancing about.
"But the Glazers shook a few hands and had some photographs taken, that was it.
"Some English clubs have changed managers so many times that it creates power for the players in the dressing room.
"That is very dangerous. Football management in the end is all about the players. You think you are a better player than they are, and they think they are a better manager than you are."