Again, he took charge in the hardest, most unique circumstances we've ever seen, with no preseason, playing every 3 days, with longer international breaks(teams playing 3 games instead of two and coming back with 1 day to spare before games), COVID taking out players, injuries piling up, etc...
He's had a full team to work with for a total of like 3 weeks - and they looked genuinely great in those weeks. Yesterday was their 10th game in 30 days, they were mentally shot, came out flat and found themselves down a goal and a man inside 20 minutes...they didn't actually play badly in the second half despite being a man down and had every break going against them. If the ref sends off borja they probably win. If he gives the clear penalty on cristiano they probably don't lose...
They'll be as fine as fitness allows them, but it's really too early to make judgements on Pirlo
Sarri was sacked by the players by the way