I don't think Mane is a worthy substitute for Robert Lewandowski either, because they have a completely different level of play, but you shouldn't judge their results by home league goals scored... The EPL is very different to the Bundesliga... Mane is one of the favourites for Liverpool fans like Robert is for Bayern fans... And he definitely has potential...
It could still be possible if Sadio Mane can be back up with a great team I think Bayern Munich still will do good and I think Bayern Munich now see the latest performance of Mane, maybe now he have improve so much for the next season, let's just wait and see if Sadio Mane have turned out to be a beast,
So far, it does feel like Sadio Mané will not be able to fill the void left by Robert Lewandowski. He had been dominating the Bundesliga for a long time prior to that. In terms of the most prolific goal scorer, he has also always been on top in the Bundesliga. And it will be extremely challenging for Bayern Munich to find a suitable replacement for Robert Lewandowski. At the moment, Sadio Mané doesn't appear to be able to fill that void.
But yes, I can be wrong. You know what, I actually think Dortmund might be able to give Bayern Munich a little bit of trouble because of this problem. If Bayern Munich sees that Dortmund is having a certain amount of success with Haller, I think Bayern Munich is preparing to buy that player as well.