Zidane is not a good and better coach than Erik Ten Hag, if he is a good coach, then he should explore and go do it with a lower club same way Erik Ten Hag has done and also Xabi Alonso with Bayern Leverkusen. People forget he was also under pressure during his last season in charge of Real Madrid. Immediately he they won the Champions League Competition, he quickly resigned do he would still maintain a beautiful managerial profile.
Zinedine Zidane and Erik Ten Hag are entirely different from the rest. We know the devastating measures that follows when we're talking about these managers. Zinedine Zidane have made accomplishment for important titles for Real Madrid and won the UEFA Champions League title 3 memorable times in a row, he clearly station Real Madrid to be an elite team and we understand the unique form of the club.
While for Erik Ten Hag, he's still consider mediocre despite winning 2 titles in two season for Manchester United. To mention these titles, it become more average because he didn't go in for the top titles. Erik Ten Hag will improved with time but in the mean time, he just have to stick to the current condition of the club and making plans to establish the club's standards.