Vidal says he wants to feel important and, should he not get that at Barcelona, he is not afraid about parting ways with the Catalan side.
"I would like to be here forever, but I have to be objective and live day to day," Vidal told TV3.
"If in December or at the end of the season I do not feel important here, I will look for a solution and expand my horizons [in order] to be important."
He added: "One could say that everything is fine but, clearly, the team, to achieve our goals, to lift the trophy at the end of the season, has to improve a lot.
"We're on time. We have to begin giving the maximum, or working much more."