It is true that Salah has a huge role in Liverpool; yet Salah is an old winger and would be replaced soon by Liverpool anyways
The best opportunity would be to let go while making good amounts of money fit to get a quality replacement in the mold of Mohammed Salah.
No one in Liverpool squad can replace the role of Salah. Although he is an old player, his role is very crucial. It can be seen clearly in many matches, Salah contributed in most the goals of Liverpool.
It s not easy to get the replacement of Salah. Although Liverpool buys a new winger, the new winger may be difficult to adapt with Liverpool game. Darwin Núñez is the example of the new player in Liverpool who can't adapt well with Liverpool game although he is already few years in Liverpool.
Moh Salah has become a goal scoring machine for Liverpool and the passes he provides also really help other players in creating opportunities so as long as Salah is not in the starting Xl I am not sure Liverpool can maintain their winning record and stay in first place because Manchester City will definitely take advantage Liverpool's current situation is to continue to win and wait for Liverpool to slip from the top of the standings.
Yes, he is the machine goal of Liverpool. If he isn't in the lineup, Liverpool often gets difficulty to score goals. Sure, Salah is the mainstay player for making goals. He also often contributed by delivering assists. He makes other players to score goals. He is also to attract the defenders of the opponents, so other Liverpool players can get the chance to scores.