I am already feeling a negative energy and outcome for Bayern Leverkusen throughout this season. Sacking the manager at the start of the season and then looking up to another one to help propel the team throughout the season won’t come that easily. Putting together a team you’ve not really trained to structure out how your gameplay will be for the season when the season has already began is very difficult. They were never lucky with the coach and I hope they can revive quickly and get to finish the season in a very good state.
I see it too from your point of view, the sudden sack somehow felt so off and may possibly throw the team off balance awhile even though he was not doing so well with them, but if a new coach comes, it will be tough work for him amd I hope they are not expecting some magic too else they should be ready for some very messy season, it would have been easier with ten Hag to turn a new leave than it will be now starting all over with a new coach.