Moratti said that Inter struggled with Siena's pace but has faith in coach Andrea Stramaccioni to turn things around.
"We all saw the match, so let's just say that we fell victim to the pace of our opponents," LegaSerieA.it quotes Moratti as saying. "As for the rest, I'm not a coach so I can't provide further explanation.
"Yes [I am still confident], certainly. We need to work hard, stay very alert and defend against attacks – especially those closer to us – in such a way that things start working again."
Inter are fifth in Serie A after the defeat.