One week after being sworn in as U.S. attorney in Philadelphia, William McSwain has put together the executive team that will lead the region’s federal prosecutors, his office announced Thursday.

McSwain, a former Drinker Biddle & Reath partner who was confirmed by the Senate on March 20, selected four veteran prosecutors for roles on the team, including former Acting U.S. Attorney Louis Lappen and assistant U.S. attorneys Jennifer Arbittier Williams, Denise Wolf and Gregory David, according to an official statement.