In the second leg, Leverkusen has a big chance of winning because they are playing at home. The match will take place in mid-March and basically both teams have the same chance of qualifying for the quarter-finals. Leverkusen has home advantage, but this is not a guarantee that they can win the match and qualify.
Leverkusen if they continue with the second half strategy that got them the two goals will win the game. Coming back to almost winning a game from two goals down is not easy, but the team did it.
Xabi's strategy of starting without Xhaka and Wirtz and resting them didn't work in the first half. The team was completely confused and the usual processes of the last few weeks and months hardly worked. Because of this and with a little luck, the underdog was able to quickly score two goals. Luckily, Xabi corrected that at halftime and suddenly Leverkusen's successful game worked again. Wirtz in particular brought momentum into the game so that they were able to score 2-2, was is a good base for the second leg.