There are many things that need to be evaluated by Xabi Alonso, especially for the defense position because this weakness is the most crucial point. The strategy can be used like last season, but there must be a few changes so that the opponent cannot easily read it. The international break is a point of evaluation that needs to be improved and if not many Leverkusen players strengthen the national team, it will make it easier for Xabi Alonso to see the weak position. Against Hoffenheim, they really have to get full points because if they find unsatisfactory results again, Leverkusen will lose the opportunity to be in the top five of the standings.
No, Xabi doesn't need to do much, believe me if the defeat in yesterday's match was just a small mistake when Xabi used the wrong goalkeeper. I don't know whether my opinion is right or not but Leverkusen still has a very good appearance from the attack line and even the defense line is still very stable. However, I support your opinion if even though last season was successful using what Xabi used, it would be better to still have other alternative strategies so that they cannot be defeated by opponents in the next match.
In the upcoming match Leverkusen doesn't need to try too hard to get 3 points but remains consistent without being defeated even though it's only 1 point but that's much better than losing points. Against Hoffenheim should be an easy task for Xabi.