We wait and see how Ten Hag will start the new season with Leverkusen. Can or can not he answer the doubts of people who think that he should not be in Leverkusen? We will wait and see.
Everyone will hope that everything will be fine and Leverkusen will improve their performance. Because previously they have performed quite well, and it will be a problem if Ten Hag has difficulties at the beginning of the season.
Expectations for Ten Hag in my opinion will not be too high, but his chances of winning a trophy in his first season are still open. As we know, Leverkusen is in a transition period, and Ten Hag must try to speed up his adaptation process. Of course, Bayern Munich is the team that is more favored in the competition, and it will not be easy to break their dominance. I think Leverkusen won't have too much trouble if they aim for a Champions League zone, and who knows, Ten Hag will be lucky even though he is currently very underestimated. Besides that, I hope Dortmund will be involved with Leverkusen in challenging Bayern Munich dominance.
It would be more interesting if more teams were competing with the dominant Munich. Many doubted Leverkusen after Ten Hag took over, but we have not seen their performance. Dortmund looks better now, hopefully they are ready to compete next season with Munich and also Leverkusen. Getting a place in the Champions League next season is a safe result for Ten Hag. Hopefully, he can get it.