Same thing I've been complaining about Eric ten hag, he is full of trial and error, when I noticed this was when he had issues with Cristiano Ronaldo, Ronaldo was obviously the best attacker united had that season, he started putting him on the bench, as if he had a better plan, some times he played him towards the end of the match, a player that is capable of turning around the game in your favour. I knew he was doing that to prove a point to Ronaldo, that he is under him his control as a manager, so can do whatever he wants. David de gea was doing just fine with United, why on earth did he not renew his contract. Ten hag went and brought onana a colossal failure to team. Ten hag needs more learning, United is too big to be managed by a coach that doesn't have foresight.
Maybe United parting ways with Ronaldo was the right move (age and all that) but the way it was done was absolutely unacceptable. Firstly, Ten Hag initially said that he needed Ronaldo and was counting on him, but after such words he kept him on the bench, naturally this led to a scandal. Secondly, Ronaldo is a United legend and in time everyone will remember that one man (Ten Hag) imagined himself to be more than the club and the management did not put him in his place in time. It is obvious that Ten Hag is not ready to coach top clubs. He worries more about his status than normal interaction with players
Ronaldo's conflict with the Ten Hag was well visible. Manchester United really needed Ronaldo. He is very experienced. Even if he doesn't perform well in a few matches, having a player like Ronaldo in the squad boosts the confidence of other players in the team. Even then Ten Hag did not keep Ronaldo in his starting XI. He kept Ronaldo on the bench. However, United may have played well in some matches after Ronaldo left the team. They managed to qualify for the Champions League. But again this season we are witnessing a poor performance from United. And I also think that Ten Hag doesn't have the experience to coach a big team like Manchester United yet.