DULLES, Va.–(BUSINESS WIRE)–Southland Industries today named Justin Herzing, Jake Popkin, and Mohammed Yassin vice presidents of business development. The company also named Sean Brooks Philadelphia division leader. The appointments took effect in early October. In their new roles, Herzing, Popkin, and Yassin will lead business development and work acquisition for Southland Industries in their respective regions and vertical markets. Their responsibilities include growing existing client rela