By FOX Sports staff
Inter dropped out of the Champions League places into fifth in Serie A following a 3-1 defeat to Siena.
It left Andrea Stramaccioni's side with just one win from his last seven games while recent results has seen city rivals AC Milan charge up the table into sixth.
Further adding to the feeling of optimism in the Rossoneri camp has been the arrival of Mario Balotelli in the winter transfer window while Inter's main business has been to sell Wesley Sneijder and Philippe Coutinho.
However, Inter did make one low-key signing - a 19-year-old Croatian player from Dinamo Zagreb called Mateo Kovacic.
Moratti believes the Kovacic deal could actually herald in a new era of success for the Nerazzurri.
"We got what we needed in terms of quality. Kovacic has huge potential," Moratti told the club's website.
"We're aiming to build something big, it wasn't easy to take the squad apart and rebuild it but we'll do so little by little.
"You can't forget the players that won everything with us. I thank the survivors of the treble-winning side for how they're behaving now, they always work hard to win and are teaching the others too."
Moratti also expressed his support for the club's manager Stramaccioni who is starting to feel the heat after a poor run of results.
"We're all here to fight, it's just a shame that as soon as things don't go as planned people get so negative. But we've got good players and the coach is intelligent," he said.
"Things can go well until a point but then something might go wrong, be it injuries, form or refereeing decisions.
"I'm not saying it out of stubbornness, I think Stramaccioni is a bright coach. He works to make things run smoothly and he suffers when things don't go well."
He added: "Things aren't going terribly but nor are they going well, but the team, the players, need to know the fans believe in them."
"The crowd must stay with them, make themselves heard and that's great. The players care, what's important is making the fans happy."
Inter also signed Stuttgart midfielder Zdravko Kuzmanovic and Atalanta winger Ezequiel Schelotto.