It may be a come down for Tina Brown to go from editor of The New Yorker and Talk magazine to a column in the Washington Post Style section, but there's precedent. Dennis Britton used to be the national editor and deputy managing editor of the L.A. Times, then he was editor-in-chief of the Chicago Sun-Times and later ran the Denver Post. After doing the dotcom thing, he surfaced last year as the tourism and Indian gambling reporter for the Palm Spring Desert Sun, and has been on the way back up ever since. In June Britton became assistant business editor, and now he's been promoted to assistant managing editor for local news.