I think Bayern Munich only needs to improve the abilities that exist now, they don't need more players, so far Bayern Munich has a very good team and is fairly solid, only if there is an injury in the main player, sometimes Bayern Munich has difficulty getting the right peng. to be able to play as usual.
You're right. They don't need new players, they have enough quality players in all lines. What they need is surely to improve the performance of the existing players. They need to maintain their good performance in each match, it is the key if they expect to win the title this season. For the injury problem, they won't be very confused because they have many alternative players.
Tuchel should look to this position for his squad rather than spending but does not get what he wants in supporting the team's performance in all circumstances of the players, because after all they are quite busy because at UCL itself after the group phase will definitely be more tiring, the focus will be drained by the game UCL, so an alternative player with the best quality needs to be owned in handling players who may be exhausted or more are affected by injury.
I don't think you are just a person who feels bored with the Bundes League because Bayern Munich is a subscription to the winner of the league, but if you pay attention to every match in the Bundes League, the competition is much better, and I also see there is no comparison of the power that is far between Bayern Munich and competitors in the Bundes League. Some squads that have recently increased not only Bayern Leverkusen, but Stuttgart also experienced good improvement since the beginning of the season.
Yes, Bundesliga is more competitive now. Some teams are stronger this season, they race for the title will be tighter than the previous season. Leverkusen, Leipzig, Dortmund, and Stuttgart become tough competitors for the title. This season is interesting, I assume Bayern Munich will be difficult to win the title again.
Judging from the current situation I think Bayern Munich will not become the league bundes champion this season, and indeed that is my desire from last season that we need the league bundes champion, because if Bayern Munich continues to win, this is like a league made for ourselves Alone, it's sad but a fact like that.

Undoubtedly, Bayer Leverkusen has been the best club in the German Bundesliga since the start of the season which has made many to believe that they're gonna end Bayern Munich dominance in the league. Bayer Leverkusen of course are strong contenders to win the German Bundesliga title but considering the quality of players at Bayern Munich and their current performance, I think it'll be very difficult to stop Bayern Munich from successfully defending the league title once again.
The performance of Bayer Leverkusen this season has made the Bundesliga a very interesting one because it's been more competitive than it used to be but I think we're gonna see current champions retain the title at the end if the season