Prior returned to the public sector in July 1996, when he was hired to succeed George Stephany as the chief administrative officer of San Diego County, California.
[1] Prior remained in San Diego and joined LightPointe Communications, rising to the position of chief financial officer and interim CEO by September 2004, when he then moved to SAIC as senior vice president, Federal Systems and worked his way up to COO.
[3] Prior resigned from his position at ManTech International to join BAE Systems Inc. in July 2010 as executive vice president, Service Sectors.
In December 2014, Prior was appointed executive vice president and general manager of CSC's North American Public Sector, a $4.1 billion business unite that provided IT, business operations and specialized engineering services for local, state and federal government clients across North America.
On November 30, 2015, Prior became the first president and CEO of CSRA, Inc. – a merger of CSC's North American Public Sector business and SRA International.