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.
In my opinion, whether or not they have popular players for a club is not a big problem, provided they have good teamwork, because in football what is more important is teamwork and also the chemistry between players. For now, Leverkusen can show that, even though they don't have many big names, collectively, in my opinion, their team is better than Bayern Munich.
It is natural that Bayern Munich has good teamwork, because the players they have are above the average for clubs in the Bundesliga. Their second line of players is no less good than the main players.
Meanwhile, Leverkusen doesn't have that, with a composition of players that is no better, even as a coach, they only have Xabi, who in terms of experience is very different from the Bayern Munich coach, but Xabi can make very interesting games for Leverkusen.