If we compare them both, both are quite good with their efforts and experience, but if we look at them in the team, Leverkusen is playing quite well and better. Erik ten hag improves his team with his efforts, but he is not preparing his team's players in any way, due to which Manchester United is not being so successful yet. Now his coach and his team should improve themselves by playing well. His development will be good, but there will also be a difference in the team's players, this will make Leverkusen better, but Manchester United was not doing well, due to which we will blame Manchester United's players, not this coach.
I think the comparison between the Manchester United and Bayern leverkusen is quite difficult. There is no doubt that both teams have the specific positions according to their performance and their efforts towards the best. But all the failures that happened at Manchester United for all the one person bear all the responsibility and that is their coach Eric ten hag. He also faced a lot of criticism from the fans now the same coach is coaching the team of Bayern leverkusen so things will happen over here in a different way. There is no doubt the coach plays an important role in the well being of any team. But i think some of the duties are also on the players because one person cant change the whole team at all. The relation between the coach and the players must be as friendly as possible. All the critics which Eric ten hag faced i think now at Bayern Leverkusen he will try to not repeat such things which he did earlier and causes his failure. So i personally believe that the team will grow very positively under his superior supervision.