Man Group has appointed Lance Donenberg and Jordan Allen as co-chief operating officers of the firm's US business. Donenberg and Allen will report directly to Emmanuel Roman, chief operating officer of Man Group. Donenberg, who is currently COO of GLG, will focus primarily on sales, business development and key distribution relationships. Allen, who was most recently COO of Ore Hill Partners, a Man subsidiary, will oversee US business operations, as well as acting as CFO. Separately, Man Group has appointed Tim Gullickson as managing director in the Client Advisory Group, based in Chicago, from where he will promote products to Midwest-based institutions and public funds nationally. Before joining Man, Gullickson was head of business development at Stark Investments.