Stefano Pioli acknowledged it was important for Inter Milan to bounce back from their recent defeat following their 5-1 demolition of Cagliari on Sunday.
Ivan Perisic (34) had opened the scoring before Ever Banega (39) added a second. Marco Borriello (42) then reduced the deficit for the hosts, but a second from Perisic (47) and further goals from Mauro Icardi (67) and Roberto Gagliardini (88) sealed a comprehensive win.
Inter had suffered a 3-1 defeat to Roma last week, with Pioli telling the club's official website after the match: "It was important to bounce back immediately, showing that we've learned from the mistakes we made last week.
"We created a lot of chances and had more than 20 efforts on goal. Maybe we could have given them fewer opportunities, but we deserved to win this game and had the right attitude throughout."
He added: "This victory is an important statement, although we know we must keep at it and continue to improve because we've got an even trickier task in store for us next week against Atalanta.
"Everyone is aware we need to up our level and constantly try to produce more in order to grow and develop a winning mentality. We're working with that in mind and the statement we've given this week – forgetting all the gossip – is crucial."
Inter face Atalanta at home next Sunday.