Inter Milan boss Roberto Mancini says the players must work to win back the fans' support.
Inter meet Udinese today.
Mancini said: "We can build on the football we play, which is not bad after just two weeks of working together. We are lacking something in certain positions, but must guarantee coverage for the defence. Attitude is important, though it's logical someone like Guarin isn't going to be a pure attacking winger.
"It's important to win, without making stupid mistakes like the ones that cost us at Roma. The team is gaining self-confidence and that is important to me.
"The fans have always been accustomed to success. Now it depends on us and the team to win them back. If the crowd sees we fight for every ball, they will get back to cheering us on the way they always have."
