In the CL quarters:
Four coaches were forwards: Valverde, Heynckes, Klopp (also a defender), Montella.
Four were midfielders: Guardiola, Zidane, Allegri, Di Francesco.
Among the most succesful coaches of all time. Plenty were forwards: Lattek, Hitzfeld, Ferguson, Cruyff, Michels, Clough.