Liquid, solid, 80s, like that of Allegri, or rather of Sarri, of Conte … But how is the football of Pirlo? Of course, here is the easier answer: we don’t know, there are too many games missing, but the observers, and not just the tactics (anyway, again: Bedogni docet) are there also for this: knowing how to read the clues. It used to be said that three clues provided proof. The test in Rome is missing, next Sunday, but we already have two clues for now. And perhaps every game, precisely because it is different, will never be a definitive test.