Bayer Leverkusen is really closing up on Bayer Munich and at this moments Leverkusen need not to loose any matches at all so that they can hopefully meetup to overtake Bayer Munich in the table. I know it's not gonna be easy but it can be possible especially when the players are so determined to see it happens. Bayer Munich on the other sides isn't ready to let their guard down. They know any slight mistakes from them might give Bayer Leverkusen a closing points towards them and I believe they wouldn't let that happen. While they are battling in the champions league,they need to also put more energy in the Bundesliga league as well in other for them to continue to retain their positions at the Top.
Yes Bayer Leverkusen is closer to Bayern Munich and now it is very important for them to keep winning and they should not lose any games. Leverkusen really wants to catch up with Bayern Munich and they are playing well right now so I think it is possible they can make catch up and get top spot. But Bayern Munich can not give up easily and they know very well that if they make even small mistake Leverkusen can come more closer. Bayern Munich is also playing in Champions League so they are double minded and they need to focus on both that and their games in Germany to stay at top of table. By the way it is going to be interesting to see how both teams handle pressure and challenges ahead.