Four execs take on new roles within the organization.

Ignite Restaurant Group (NASDAQ: IRG) announced several executive promotions, including new presidents for the multi-concept operator's Joe's Crab Shack and Brick House Tavern + Tap chains.

James F. Mazany was promoted to president from COO of Joe's Crab Shack Restaurants. James W. Kuhn was promoted to president from COO of Brick House Tavern + Tap. Michael J. Dixon was promoted to president and CFO of Ignite Restaurant Group. Edward J. McGrow was promoted to chief development officer from senior vice president of development for Ignite Restaurant Group.