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However, while McManaman acknowledges Amorim's impressive track record, he worries that Klopp's unique personality and charm will be difficult for anyone to replicate.

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Speaking at the launch of Panini's Official England Sticker Collection, McManaman told the Mirror: "He's got a very good reputation in Portugal.

Sporting is a huge club, but Liverpool are a different level."

"We all know it's going to be a difficult job for whoever comes in but the number-crunchers, the data specialists, they'll be doing their homework behind the scenes."

He added: "Liverpool are in a really great place.

It's everything else: [replacing] the charisma of Jürgen, his sense of humor, how he got the people of Liverpool, that's going to be the hard job.

"I know Rúben speaks very good English, which is a great help straight away.

The ex-sporting director, who was pivotal in the club's triumphs under Klopp, has returned with an expanded role as Fenway Sports Group's chief executive of football.

McManaman believes that Edwards' return and FSG's strategy, including their goal to establish a multi-club ownership model, are key to maintaining the winning culture established by Klopp.

On FSG's strategy, he further commented: "That's important because as we all know, it's all about how the club move forward.

These clubs will know it way in advance and then it's all about the process of bringing that new manager in."

"I think the fact that Liverpool have brought Michael [Edwards] back is great.

So it's very exciting times, even if it will be a difficult process."

Liverpool.com says: It will of course be difficult to replace Klopp, given the impact he's had at Liverpool.