Which answer matches this clue: the manager whose high-pressing 4-4-2 led AC Milan to back-to-back European Cups in 1989 and 1990?

• A Fabio Capello
• B Marcello Lippi
• C Giovanni Trapattoni
• D Arrigo Sacchi ✓

Arrigo Sacchi, a former shoe salesman who never played professionally, revolutionised football with a zonal pressing system that abandoned the traditional libero.