But they will have to replace Salah soon. However, since Liverpool has been turned into a real powerhouse over the last seven to eight years, it is much easier to convince some of the best strikers in the world to go there. Remember that Klopp had to build him team from scratch when it was in shambles. I think this is why so many people admire Klopp. He turned Borussia Dortmund into a beast back then and he did the same with Liverpool.
Salah stayed for this season luckily. However Liverpool wouldn't get this lucky next time. There have already been Saudi clubs going after him. You know how much one of them got close last summer.
Not only Salah though. They might lose Diaz too as he was also speculated in the same transfer window. I mean there isn't such thing as they can't find anyone to replace them. But these players are literally the main goal sources. Liverpool will need to work hard surely. But for now, they don't need to worry. Arne Slot has started impressive. I hope to see his club being determined in the PL and CL both this season.