Refco, the scandal-ridden futures broker, has named Robert Dangremond, managing director of turnaround and restructuring management company AlixPartners, as its interim chief executive, replacing William Sexton.

AlixPartners was retained by Refco to oversee its Chapter 11 bankruptcy filing last month. At the time, Dangremond was named chief restructuring officer, and Eric Simonsen, a managing director of AlixPartners, was named chief administrative officer.