Bayer Leverkusen did not play like it did in the final match. Atalanta played as if it had nothing to lose. Mind you, they played like this against Liverpool and won 3-0 away. Atalanta wins stressful matches by playing comfortably and the opposing team cannot relieve the stress. He was comfortable because Leverkusen was seen as the favorite by most authorities. However, the match clearly showed us that this was not the case.
This was due to Gasperini's foresight in managing the scheme of things.
We can see the smart move Gasperini made in the final match where Xabi who implemented a man to man marking scheme with a high level of press was actually used as an advantage by Gasperini who did a long pass as his main strategy.
As a result, some of the long passes and direct passes in the quick counter-attacks were an advantage for Atalanta.