Now it's time to support Ten Hag because he is not bad as currently media trial is going around him achieve some good targets at Ajax with most chances Bayer Leverkusen is going to be had same conditions which could be favourable for him.
No one is saying that us not a good coach people are just sharing there opinion that when he was in Manchester United there was no progress and this what a lot of people are using to judge ten and Leverkusen might just be another breakthrough for him because you never can tell when wether they will do well or not because ten Hag is experienced so it might be easy Leverkusen is not a club that will stress him that much since the club have all the necessary things that is need his own is just for him prepare is own strategy to run the club.
Premier League is always toughest, but Bundesliga is having similarities with Eredivisie which will give boost to him for having better results Borussia Dortmund is also under development and RB Leipzig is also doing not good these are good encouragements for them to have better results and spot. Manchester United is having completely different situation with their problem is long run which preventing them from having success and better results Bayer Leverkusen is having much better condition new players are coming which is also good.
Premier League is tough because the kind of clubs that participate in the league are not ordinary clubs they will do everything to see that they are performing well and it can not be compared to that of Bundesliga so this one of the reason why people think he will do well, all we want not is just for the season to kick off. And I don't think the issue of Manchester United is ten because I have been observing them it is mostly a internal problem, and they faulted ten Hag for not improving the club because his a magician but for us to be able to judge the season have to start, before we can blame ten hag.