Bayern Munich will win the German League even if they don't sign a replacement for Lewandowski. Because they have no rivals in the German League. But if they want the Champions League trophy, they have to make a transfer instead of Lewandowski. I think Cristiano Ronaldo could handle them for a few years. But they insistently announced that this transfer would not take place. I think they trust Sadio Mane. But Saido Mane may not be able to fill Lewandowski's place alone.
I agree with you that just to win the Bundesliga trophy, it seems that Bayern don't need to look for a replacement for Lewandowski. However Bayern
can still dominate the Bundesliga with the current squad, especially with the presence of Mane, Bayern's front line has been productive again.
After all, Dortmund as Bayern's strongest competitor also lost Haaland as their best striker, so I'm very optimistic that next season Bayern will win
the Bundesliga trophy again.
But to be able to win the Champions League trophy, Bayern can't just rely on the current squad, although in the near future it is likely that Bayern
will get De Light to strengthen their back line, but Bayern do need one more striker who can work with Mane up front. I actually agree that Ronaldo
could be Lewandowski's replacement to help Bayern win the Champions League trophy, but it seems unlikely that Bayern will bring in Ronaldo,
because Bayern's management has repeatedly said they don't want Ronaldo. Hopefully Bayern officials can change their minds and consider
signing Ronaldo, because Ronaldo will really help improve Bayern's performance.