Maradona said his appointment a year ago had made him "the happiest guy in the world, but then things happened that I didn't like."
"If I carry on, it will be on my terms," Maradona told reporters after a squad practice, adding he would discuss the job with Argentine Football Association president Julio Grondona.
Maradona returned from a 10-day break in Italy and in a tacit rebuff of Bilardo told reporters he was in sole charge and "no-one imposes players on me".
But in a typically dramatic remark, he said he had inherited a team "with lots of yellows (cards) and we filled up with more yellows because we were playing for our lives."
Maradona's anger came to the surface when asked about a muscle injury to Manchester City defender Pablo Zabaleta, who arrived in Buenos Aires on Tuesday morning with striker Carlos Tevez after they played in a Premier League match on Monday.
"We missed the boat. Someone should have travelled (to England) to bring them. We have two very important matches and it hurts me a lot, but we have to live with it," Maradona said.
