Five members of Game's management team are to leave over the next five weeks, the company has confirmed.
"We've made rapid progress in our first month, thanks to the support of our industry partners and the immense efforts of our teams across the UK," Gibbs wrote. "We've made some important changes to our senior team to reflect the ongoing evaluation of our business.
"Reorganising the leadership team to match the size and shape of our new business means that we will also be bidding farewell to some friends."
The five departing staff in question are chief commercial officer Tricia Brennan, operations director Robert Quinn, head of business development and insight Alex Vines, communications director Simon Soffe, and e-commerce director Situl Thakrar.
"Each of these colleagues has made an immense contribution to this business and to our whole industry over the last decade," Gibbs continued, "and I particularly want to thank them for their support over the last few months. We wish them all every success in the future."
Dominic Lavelle has been appointed to the role of chief restructuring officer, with Neil Robson acting as interim CFO while Game recruits for the role. Earlier this week Baker Acquisitions Ltd, a company set up by private equity firm OpCapita to handle the rescue deal, was renamed Game Retail Ltd.