ENGlobal Corporation announced that former CEO, co-founder and current Chairman William A. Coskey, P.E., has been appointed by the Board to serve as Executive Chairman of the company, effective immediately. Mr. Coskey assumes the leadership role from Mark Hess, who has resigned as CEO to pursue other interests. Mr. Coskey, who co-founded the company in 1985, has served for most of these years in various positions, including Chairman, President and CEO.