Del Frisco's Restaurant Group promoted Chef Thomas Dritsas to the position of vice president, corporate executive chef, and Bill Martens to vice president, development and construction.

In his new role, Dritsas oversees the day-to-day culinary operations for all Del Frisco's Double Eagle Steakhouses and Sullivan's Steakhouses. Since October of 2003, Dritsas has served as the company's corporate executive chef. He joined the company in1999 serving as executive chef of Sullivan's Steakhouse's Raleigh, N.C. location.

Martens now supervises all aspects of new store development and asset management for Del Frisco's Double Eagle Steakhouses and Sullivan's Steakhouses. He previously served as director of development for Del Frisco's Restaurant Group since May 2008. Prior to joining Del Frisco's Restaurant Group, Martens served as vice president, portfolio management for Lone Star Funds/Hudson Advisors, LLC, where he managed concept development, real estate, construction, and franchising for the restaurant company.