I'm really surprised with Leverkusen club this season. The team that will compete with Bayern Munich should be Dortmund. But Dortmund shows weakness when they let Stuttgart rise above the Bundesliga rankings.
We must mention coach Xabi Alonso for the success of Leverkusen. Xabi Alonso has joined the list of top European coaches after helping Bayer Leverkusen top the rankings. With those clear marks, Alonso is in the sights of many big teams, including Real Madrid. In addition to being number one in the Bundesliga, Leverkusen is leading Group H of the Europa League with 4 wins after 4 matches, while in the German Cup, they have passed the first 2 rounds. Xabi Alonso and his team will end Bayern Munich's 11-year Bundesliga championship streak, making the tournament more competitive.
Leverkusen has actually proven good performance since the middle of last season when Xabi Alonso first arrived as coach and what happened this season should not be a surprise because Xabi Alonso has built this team much better than last season.
In terms of strength, Leverkusen is very capable and up to now they are Bayern's tough competitors in the race for the Bundesliga title this season, they just need to be consistent to be able to maintain this momentum until the end of the season.
Meanwhile, Dortmund is still the same as the previous season, consistency is still a problem in their team, at the start of the season they managed to maintain their performance but in the end in the last few matches they were the same as last season, I am not surprised anymore because that is the Dortmund team.