He said on Sky Sports: "I think from Feyenoord to Liverpool is a huge jump. I think it shows at this moment that there's probably a dearth of real top managers out there when you look at who Liverpool were going for. So initially probably Xabi Alonso, who is in his first full season as a manager. There was talk of Amorim from Sporting, again he's 38, and now Slot looks like he's the favourite right now.
"I don't think it's like Rafa Benitez coming in off two La Liga titles and the UEFA Cup or Klopp coming in after winning titles with Dortmund and getting to the Champions League final. Liverpool were actually in a different space then. That was a team, I was part of, we were a team trying to qualify for the top four.
"But Liverpool are in a different area now. They fancy themselves to challenge for the Premier League every season and next season's Champions League you'd expect to go to the quarter-finals at least.
"So I think it's a huge jump but he's obviously a great coach and has a great track record at the clubs he's had so far. We'll see."