ARLINGTON, Va.--(BUSINESS WIRE)--CACI International Inc (NYSE:CACI) announced today it has appointed Jerry Briggs as Executive Vice President and Business Group Manager of Healthcare, Litigation & Enterprise IT, reporting to Chief Operating Officer and President of U.S. Operations John Mengucci. The strategic hire of Mr. Briggs to head this business group supports the company’s aggressive focus on growth and operational excellence and brings an experienced industry veteran to CACI’s team. M