NEW YORK (AP) — Supervalu Inc. on Monday fired its CEO and tapped Chairman Wayne Sales to lead its turnaround efforts, just weeks after the grocer reported dismal quarterly results and suggested it might put itself up for sale.

The Eden Prairie, Minn.-based operator of Albertson’s, Jewel-Osco and other grocery chains said Craig Herkert, who was brought in as CEO in 2009 to help shake up things, was notified of his firing Sunday.