Given the changes made by the Bundesliga teams for next season, I don't think anyone doubts Bayern Munich's ability to defend their title. Indeed, none of the top Bundesliga teams have made significant changes to match Bayern Munich's strength.
Their success in acquiring Luiz Diaz certainly has the potential to significantly sharpen Bayern's attack. He is a highly qualified player, and the decision to join Bayern is certainly the right one for him, as he desires more playing time.
Before Luis Diaz's arrival, everyone was confident that Bayern Munich would win the title last season, thanks to the presence of Harry Kane, a player with a truly proficient ability to consistently score goals.
Now, Luis Diaz's arrival has made a huge impact on the club, and all the players are confident they can defend their title next season.
Bayern Munich will likely be stronger not only in the Bundesliga, but also in other competitions.
Vincent Kompany will find it easier to implement his current tactics.