Yeah I have doubts about how capable De Zerbi would be about managing a much bigger team in the Premier League. He is shown as a candidate for Liverpool's next manager at the same time. However Brighton are the first team he is managing in this league now. Before this job the biggest team he managed was Shakhtar Donetsk.

Manchester United and Liverpool both had better be diligent about their next choices to not regret for that later on. There should definitely be better choices than De Zerbi for these teams as well.