By Manchester correspondent Alex Stevens

Sir Alex Ferguson has admitted that Jurgen Klopp is a “good appointment” by Liverpool and he is worried about how much the German could improve Manchester United’s great rivals.

The former United manager and current director of the club revealed he is an admirer of the new Anfield boss.

“Strong personality, very strong, very stubborn, determined and his performances, and his career at Dortmund was a stellar rise to the top and I think he’ll do very well,” Sir Alex told ESPN in the United States, where he is promoting his new book, Leading.

“I don’t like saying that, being Liverpool, because I’m worried about it but, no, he’ll do well.”

However, Ferguson spoke less warmly of Liverpool’s transfer committee, which he claims undermines the role of the manager.

Although Klopp dismissed suggestions that he would find it hard to adapt to the system, claiming it is “not a problem for 10 seconds”, the most successful Premier League manager in history is less enthusiastic.

“If you don’t trust your manager, why have him there? You’ve got to trust your coach,” Ferguson said, insisting the manager must be fully in control of transfers.

“Here’s the man that should be deciding which kind of player he wants, the type of player, position he wants, his character he wants. It’s the manager who knows more than anyone about what he needs as a coach.

“And I think that, there’s a lot of this happening in the game now, these ‘Moneyball’ ideas about looking at statistics of players and bypassing the manager’s thoughts, and I think it’s wrong.”