One way to look at the 2019–2020 UEFA Champions League season – which recently came to an end with Bayern Munich winning the final 1:0 against Paris Saint-Germain – is to see it as a battle among German coaches in which Hansi Flick ultimately triumphed over Thomas Tuchel and Julian Nagelsmann. Yet another German coach, Jürgen Klopp, had won the Champions League with his FC Liverpool team the previous season, …