What do you look for in a manager these days? A forensic, detailed approach to tactics; charisma; an inclusive attitude that draws the best out of neglected players. Ten Hag's zero for three.
Guardiola, Klopp, Arteta, Emery, Postecoglou, Howe, De Zerbi (to list the other managers of clubs in the top eight, I'll stop at West Ham for obvious reasons, sorry Dave but you're a dinosaur) all have at least two of these traits.
I don't know why you'd rate ten Hag, he seems well out of his depth.