“We had intended to start with a different attitude, but we know there can be difficulties in games that seem on paper to be simple. We were too superficial at the start and had to chase the game," Pirlo told Sky Sport Italia.
“Our first press wasn't vehement, which is normal after so many matches to lose a little intensity, but the important thing was not to get stretched out and allow counter-attacks. We did it a few times in the first half, but then managed to settle down.
“I expected more from the players, but Ferencvaros clammed up, we had to try to move the ball back and forth more quickly to spread them. We moved it too slowly, which made it easier for them to defend.
“Ferencvaros keep a high line and invite you to attack them, but if you don't do it at the right moment, it plays into their hands. When we got the timing right, we were almost always dangerous."
Pirlo was also critical of Arthur on the night.
He added: “He got a bit pig-headed today keeping hold of the ball and trying to find more direct through balls when he should've spread it wide and tried to spread the Ferencvaros defence.
"He should've opened up the game more to create one-on-one situations. If the ball moved too slowly, it allowed them to get back into position."