Middleby Corp., Elgin, Ill., announced that Mark Easterday, who serves as executive vp of brand sales for the company’s Commercial Foodservice division, will retire at the end of December. The company has promoted executives Christina Barker and Mitch Cohen to “share (Easterday’s) current responsibilities.” Easterday assumed the position of head of all Middleby Commercial Foodservice division brands in 2018. He…