I have my doubts about Ten Hag in this regard. We may have seen the situation with Manchester United where despite having sufficient funds, Ten Hag did not make the necessary signings and did not enter the transfer market sufficiently. That is why we have seen them lose their dominance in the Premier League. Leverkusen is a strong team in the German league and their achievements are also quite good. But I have my doubts about how Ten Hag will do in the future. However, I think if Ten Hag makes the necessary signings, we can see Leverkusen improve.
I agree. I'm not sure what budget he had available for transfers at Man United, so not going to comment on that, but it was clear that he had no plan B for where his strategy for the team proved ineffective. He got a lot of trust from the club owners and he was sacked much later than everyone expected. So he had time + credit of trust, but he wasn't really attempting to make any adjustments. It seemed like he was just waiting till things just magically click and everything will be fine. At least that's the impression I got from that time, I could be wrong though.
I really wish him and Leverkusen all the best, but I just don't have my hopes set too high for them this season.