Bayern will certainly pick form,but we can also assume that the absence of Lewandowski is now having effect on their team,because Lewandowski was so instrumental to the success of Bayern that they will continue to miss him at his absent.He was replaced by Mane whose impact is also now felt by Liverpool.I still think the league has not gotten anywhere yet for us to conclude that Bayern will not meet up this season,things can just change and they will start winning matches again and they will win the tittle again.
Robert Lewandowski shouldn't be an important problem for Bayern Munich, because they've got high scores without relying on Robert Lewandowski, so with Mane they should be able to adapt to new players and try to work as a team well to be able to shoot on goal and score. goals, in fact the game of football is not dominated by only one person but requires excellent teamwork.
I don't think the absence of Robert Lewandowski is the cause why Bayern Munich are not performing well, that's not true. After Lewandowski left when the league began Bayern Munich performance were outstanding for sometime and they were able to score good amount of goals in every match. Mane started well with Bayern Munich, his performance was impressive, he didn't struggle in any match. If Mane was not good enough for Bayern Munich we would have noticed that from the beginning when the league started. The challenge Bayern Munich are facing can't be solved by one player, it needs to be solve by all players in the team .
Robert Lewandowski's departure has created a gap in the team which Sadio Mane has not being able to fill. I also have faith in Sadio Mane and strongly believe he can be a star at Bayern Munich even if not totally filling that space for Lewandowski, Mane can still strengthen the attack from the wings which has been his favored position for years and he can play very play from that position, he just needs time to settle in.