Erik Ten hang was worse for me, we all thought he knew what he was doing when he was keeping Cristiano Ronaldo at the bench, not knowing the young man didn't just like Ronaldo and probably he was intimidated by Ronald's status and as a coach he couldn't manager a star, Ten hang was one of the reasons Cristiano Ronaldo had to leave for Saudi.
I agree with you, he was one of the triggers for MU going under, who in their right mind would leave CR7 on the bench? Only him, and if it's because he didn't like him, then in light of this, it seems bad to him. However, as I've said, he can improve, but if Bayer sees that everything is going down the drain, they have to get rid of him, and fast.