The manager may not have time to do a lot of work now since he just arrived but in the game he is going to play a vital role knowing that the fans will be happy if he gets a good result in the game and additionally he's going to win the heart of the fans it his first game becomes a win. Frankfurt looks better in shape but the new manager will have to ginger his players to make it difficult for Frankfurt while they look for a way to get the 3 points. Kasper Hjulmand is a good manager he will first focus on knowing the weakness of his team also the issues that led to the poor relationship between the players the coach and the management and after that he will charge his players to be motivated so that they can get a good result, a month is ok to know his team and start getting the desired results.
It will be difficult for any team to play against Frankfurt because they are in excellent form, had plenty of time to prepare, and have kept their key players. Bayer sold several important players, and then made a few transfers, but those were done under Ten Hag, and the new coach may evaluate these actions differently. Of course, the players will try hard and may even play better knowing that Ten Hag is gone, but Frankfurt is not an easy opponent, even though Bayer beat them twice last season.