Sir Alex Ferguson has hailed Jurgen Klopp as a "good appointment" for Liverpool but predicted trouble ahead with the transfer committee, the legendary Manchester United manager told ESPN FC in an interview.

Liverpool hired Klopp as their manager on Thursday four days after sacking Brendan Rodgers, and Ferguson revealed that he's an admirer of the former Borussia Dortmund boss -- even if he has taken over a rival club.

"Well it's a good appointment. I admire him," Ferguson told ESPN FC's Shaka Hislop. "I know Jurgen pretty well through our meetings at [FIFA] coaches' classes in Geneva.

"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.

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

Sir Alex Ferguson got to know new Liverpool coach Jurgen Klopp, centre, at a FIFA forum in Switzerland last year. Harold Cunningham/Getty Images

Klopp has agreed to work with a transfer committee at Liverpool, calling the situation "not a problem."

But Ferguson rejected the concept of a committee, instead suggesting that the manager should have complete control.

"If you don't trust your manager, why have him there? You've got to trust your coach," said Ferguson, who is in the United States promoting his new book "Leading."

"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.