Arlington-based CACI International has appointed Kenneth Asbury as president and chief executive, taking over from Daniel D. Allen, who just assumed the role last year.

Asbury is a former Lockheed Martin executive who led the Bethesda-based contractor’s technical operations, mission services and civil businesses.

CACI said Allen, a former Northrop Grumman employee who joined CACI as chief operating officer in 2011, is departing “to pursue personal interests.”

He took over the chief executive role in July.

Jack London, CACI’s executive chairman, said in an interview Wednesday the company is refocusing its efforts on business development, given government spending declines.

The company’s business development organization will now report to Asbury.

“Ken has a significant reputation and set of credentials in performing that function in Lockheed Martin,” London said. “If we’re going to rejig and reset the organization in that fashion ... the leadership needed to have the depth and experience.”