Currently he's been judged by his pre-season matches but that's not how it works he could end up having a very good season with Bayer Leverkusen, I'm not saying they're going to win the Bundesliga this season cause Bayern Munich are still in a good shape for that, Kompany winning the previous season would encourage him to want to win it again consecutively.
Well I'm very sure that with Erik Ten Hag, Bayer Leverkusen would finish in the top four, they might not be able to win the title for now but if they can give Ten Hag a team of young talents like he had at Ajax a team that he can control without having dressing room issues then maybe he could win it in the future.
I have not completely lost hope in him, but we judge based on what we see from their performances. In the pre-season, we saw poor performances, so let us wait and see how their first game will end before determining whether they will perform well or not. For now, let us also wait and see how Hoffenheim will perform against Bayer Leverkusen. Even though we all know that Bayer Leverkusen are supposed to win, let us see how the game will go.