Changing jobs: Nancy Roman, chief executive of the Capital Area Food Bank, is stepping down to run the D.C.-based Partnership for a Healthier America, a nonprofit focused on ending childhood obesity. The partnership’s honorary chair is former first lady Michelle Obama. The food bank has announced a search for a new leader. Getting bigger: Navy Federal Credit Union has absorbed the Fort Meade Community Credit Union, adding two branches to its own global network. One branch is on the fort’s Army garrison, and the other is located at the Odenton Shopping Center. New at the top: Cyndi Barreda has been named chief executive of NetCentrics, a Herndon-based provider of IT, cloud and cybersecurity services to the federal government. Barreda, who joined the company in 2002, most recently served as president. She succeeds Bob Dougherty, one of the company founders.