Board member Ronald Sargent will serve as Chairman of the Board of Directors and interim Chief Executive Officer

Kroger Co. replaced Chief Executive Officer Rodney McMullen following an investigation into his personal conduct, casting a shadow on the supermarket operator’s path forward following a failed deal and a string of management departures under the longtime leader.

Kroger CEO Rodney McMullen resigned from his post on Monday, weeks after a merger with Albertsons fell through.