Teams like Leverkusen will usually experience difficulties when entering the second half of the season. Because teams with unpopular players usually have difficulty rotating their players to maintain game consistency. But what Leverkusen did was extraordinary. They are able to become an unbeatable team this season. Munich is still chasing points. I think the meeting of the two teams will determine who will be champion at the end of the season. Of course this will be a big pressure for Munich because they are the ones who are required to win.
Leverkusen is quite aware that they don't have very popular players in the current squad, but this certainly won't be a serious problem for them as long as the coach is able to manage it well enough. Apart from that, Leverkusen can still make very specific priorities this season regarding what trophies they will fight for. So the focus can be further enlarged in that direction because this season Leverkusen will also have another busy schedule when the European League starts again this month.
According to what you said, the coach's ability to handle the team is very important. Regarding Leverkusen's busy European League schedule, their focus on individual awards might help them. Their unbeaten streak says a lot about their promise, especially since they are about to play Bayern Munich. Although the game will be tough, Leverkusen's recent performance says they can handle it.
The next game between Leverkusen and Bayern is very important because both teams are fighting for the Bundesliga title. Draws may look like a weakness for Leverkusen, but they show how tough they are. Their record of winning all of their games is amazing. They might have a season-defining game against Bayern Germany. In theory, Leverkusen could win the Bundesliga if they finish first.