I even just found out that the current Leverkusen coach is Xabi Alonso who is a Liverpool legend. No wonder Leverkusen is having a pretty good season at the moment while still playing actively in two competitions. I think that even though Leverkusen have had very good performances this season, Gilloise cannot be underestimated and I agree with your opinion. Gilloise was able to compete at the European league level by getting rid of such a strong opponent and they are one of the teams to watch out for. But for this match, I'm also a favorite for Leverkusen to get rid of Gilloise in the quarterfinals.
Xabi was changing leverkusen to be even better, it's now become even far from the relegation zone. It seems like that changing the coach is really working although if there are no changes happened in the formation of players. The impact from coach is very big and xabi was successfully managing leverkusen.
A bit surprised if he had been choosen to be a new coach for leverkusen but yeah he was making impressive performances with leverkusen. It can be seen from the result of previous matches how leverkusen was played consistently.
If alonso will be successfully managing leverkusen and that will open the possibility for him to be taken as a new coach for liverpool to replace klopp. Liverpool fans are not feeling satisfied with the performance of club under klopp right now.
Some fans were already yelled for management to change klopp with xavi alonso. Will this gonna be real? It's only time who can answer it.
There will be many surprises to come next season.