Mane was signed to replace Robert Lewandoski so it is a norm for fans to complain when he is not helping the team to win matches due to his inability to score goals but since they have returned to winning ways, I believe the players will be motivated to put up a better performance in their next matches.
Those fans should also understand that forward position is not his natural position so it will take time to adjust. He is a great player in attack and can help Bayern with great achievements but they gotta give him time to adjust to his new role and tactics that manager is giving him.
INdeed, Mane cannot replace their position of Lewandowski 100% because they are actually different positions. But at least, Bayern still has good attacking lines although after being left by Lewandowski. However, we also can see in several matches in their Bundesliga matches that Bayern really has some lacks currently, moreover after a lot or only being drawn with small clubs. Mane of course can bring some good influence to the team, moreover, he is also a very talented player, and his contribution is good enough so far, although it may not be very optimal. But in the act, his trial is really hard enough to bring this club great even after being left by Lewandowski.
Agreed about this both are completely different position players and doing good job for their respective clubs now with today result now mostly peoples are feeling good as Bayern Munich is sourly going to be more aggressive in coming weeks as they want to be back at their top position, and they need to go ahead with positive strategy and better system which is surely going to work for Nagelsmann which was under huge pressure, but this results give all shut up call.
Today Sadio Mané dong his sixth goal in Bundesliga, and now we can expect more good performance from him in coming matches now after this match they are strongly going for their next challenge at home against Plzen which is already lost their both matches and surely going to be easy match for home side.