Bill Greenwalt, the Senate Armed Services Committee staffer who helped Chairman John McCain (R-AZ) engineer some of the most significant acquisition reforms in years, will soon be leaving the committee, according to several sources. Greenwalt will be replaced by Ben FitzGerald, who recently joined the committee from the Center for a New American Security to work on defense industrial base issues, and committee staffer Samantha Clark, who will focus on contracting legislation. Greenwalt confirmed the moves in a statement. The...