Zanetti reflected on a poor team performance, which started brightly enough with a goal from Esteban Cambiasso inside six minutes. But the game ended all too familiarly for Inter, as the home side scored a second half brace. Catania's winner came via a controversial penalty decision.
"We mustn't focus on the penalty episode," the defender told Inter TV.
"Unfortunately it's another defeat after we did well in the first half. But everything changed in three second-half minutes. We tried to come back from that but it wasn't easy.
"We're standing here talking about another defeat and lots of goals conceded."
Zanetti said the team must now look to reassess its goals for the rest of the campaign, as Claudio Ranieri's side have only four points in the league and sit one place above the bottom three in the standings.
"We have to change the way we look at things," the skipper continued.
"We've made the sort of start that nobody expected, and we're disappointed and upset just like the fans, but we must stick together.
"We'll try to get back on track because this team has a lot more to give."
Download the Goal.com Mobile app, and the world of football will be at your fingertips and in your pocket!