While a lot of people sees that Bayern Leverkusen will be more than this season on the next one but they have not considered what the new coach might be giving to them as he is starting the season, so they shouldn't get too confident on the new coach yet, let it not be that they will be hoping for something and getting another, that's how some clubs out of previous poor state get so happy for the new coach they're about to have but seeing worst results from him later on, if hype was a trophy Manchester United could have gotten it from all the hype they got while there current coach was on the process of joining them but unfortunately it has been the same as always.
It will take time for Ten Hag to make changes at Leverkusen because after all the departure of Xabi Alonso has made this team have to go through adjustments. The target next season to compete for the title but it will be difficult to achieve if Leverkusen does not strengthen the team with the swelling of several important players. Everyone associates Ten Hag's failure at Manchester United and maybe many people are pessimistic that Leverkusen under Ten Hag's coaching can be much more successful. Anything can happen but we need to give him time and trust him because who knows he could repeat the success he had at Ajax.