The Nerazzurri are pushing to remain in touch with the top-placed teams in Serie A and kept on the pressure with a comfortable win, thanks to goals from Rodrigo Palacio, Andrea Ranocchia and Ricky Alvarez.
"As of now we should only be focused on this. The other teams have different features and have a different history," Mazzarri told reporters after the game.
"We have to be focused on ourselves and then we'll see the results at the end. This is our new beginning, there has been a big change in the club, and last year the team closed the championship in a certain way.
"Therefore we only had to find an identity and be competitive as soon as possible."
Inter moved into fourth position in the league following their win this afternoon.