Soriano has defended the decision to sack Mancini.
He said: "We donâ€™t think we are under any instability. We are changing the manager as it happens in other clubs.
"We feel confident that we will have a good manager and a very good team next year. And I donâ€™t think anybody made a mistake on this.
"Itâ€™s just, as normally as it happens in football, time to change for the good."