It was his first job and he's barely 40, is he? Getting thrown into a high pressure situation doesn't always work for everyone, a la Pep. He's taken a good chance dropping down to Brighton as well from a Champions League club. You're far too reactionary.
he didn't show anything special like others (Klopp, Schmidt, Streich, Weinzierl) have.
He would fit better in english football where 90% of coaches are shit