Todd Spangler NY Digital EditorVox, the flagship news site of Vox Media, is losing its top two editorial execs: Ezra Klein, co-founder and editor-at-large and founder, is leaving to join the New York Times’ opinion department, and editor-in-chief and SVP Lauren Williams will exit to launch Capital B, a local and national nonprofit news organization serving Black audiences.Klein said he will join the Times in January.“After nearly eight amazing years building, editing, and working at @voxdotcom,