Sotheby's announced the appointment of John Cahill to the role of Executive Vice President, Chief Commercial Officer, and Ken Citron to the role of Executive Vice President, Operations & Chief Transformation Officer. The two new positions assume the previous role of Sotheby's Chief Operating Officer held by Adam Chinn, who will be leaving the company at the end of the year. Cahill and Citron will join Sotheby's in January, working closely with the Company's leadership around the globe and reporting directly to Tad Smith, Sotheby's CEO. John Cahill joins Sotheby's from his eponymous firm, Cahill Cossu Noh & Robinson, one of the most successful full service art law practices in the industry. In his new role as Chief Commercial Officer, John will oversee the Company's global deal making affairs with clients, including lending business, Sotheby's Financial Services. As Sotheby's new EVP, Operations & Chief Transformation Officer, Ken Citron will be positioned at the intersection of logistics, services and technology to drive performance improvement across all operations. Before joining Sotheby's as a consultant earlier this fall, Ken spent five years at Christie's as the Chief Operating Officer, overseeing all operations and site management for their 54 offices around the world, and leading a digital transformation.