Gwynn Milligan, managing director of Cocosa, is understood to have left the womenswear etailer along with finance director Stephen Lewis after both spent just six months at the business.
Milligan joined Cocosa as managing director in September 2011. She previously held roles including commercial director and merchandising director at young fashion etailer Asos and prior to that worked at Arcadia-owned retailers including Topman.
Before joining Cocosa, Lewis worked at video games developer Trion Worlds and designer label Jasmine de Milo. David Llamas, IT director at Harrods, is thought to have joined Cocosa as interim chief executive.
Cocosa, which was acquired by former Harrods owner Mohamed Al Fayed last year, declined to comment on the departures.