Overall, IMO, Klopp is better than Ten Haag, we really can't judge MU success in winning the match against Liverpool as Ten Haag overall success in the EPL. However, in Liverpool history, Klopp has given Liverpool the important title they have always wanted, the EPL Trophy. Meanwhile, Ten Haag still hasn't been able to prove the effectiveness of his strategy in the EPL so far. I'm not saying Ten Haag is very bad, but it's not right to compare him with Klopp, who has been at Liverpool for several seasons. And we can't blame Klopp for losing results against MU, even Liverpool losing their 1st position.
Yes it is evident, the person who says Ten Hag is successful maybe he is too fanatical. Kloop has been Liverpool for almost 9 years and has plenty of winning evidence. So his coaching career I consider quite successful. As for Ten Hag, he hasn't given any evidence at Man United so he's not in good coaching at the moment. One game is not a measure of a coach's success. Even Kloop is one of the coaches that amazes me besides Guardiola.