Mr. Roberts was President and CEO of Align Aerospace during Greenbriar's ownership. Prior to Align, Mr. Roberts was President and CEO of aerospace component manufacturer Permaswage until its sale to Precision Castparts. Mr. Roberts held a number of roles at Northwest Airlines including as Executive Vice President of Operations, overseeing all of the day-to-day operations of the airline. Earlier in his career, Mr. Roberts worked with several leading aerospace companies, including Aviall, Pratt & Whitney and Lucas Industries. Mr. Roberts is a Director of Continental Motors Group and SkyWest Inc. (NASDAQ: SKYW).