The win moves the club into fourth place.
“This is a very important victory and a difficult one achieved against a side that caused us a lot of problems, preventing us from playing our game in the first half," the coach told Sky Sport Italia.
“Winning this type of match means it really is a great season. I am truly satisfied, because aside from the idea of chasing Europe, we wanted to reach these next few rounds in the best possible position.
He added: “I don't know how you define a big club, but if we look at the table, Atalanta are in a very good position indeed. At Genoa I also used to finish in the top 10 at least, so I'm missing nothing."