Bob Goll, managing editor of MediaNews Group’s Tri-Valley Hearld in Pleasanton, has been promoted to editor. Before that he worked for the Oakland Tribune and Contra Costa Times, and served as editor of the Valley Times for nine years.

Goll succeeds Drew Voros, who becomes business editor of the Contra Costa Times, which is now owned by MediaNews. Voros for the past 18 months has been editor of the Herald, supervising its editions in the Tri-Valley, San Ramon Valley and San Joaquin County. Prior to that, he was business editor of ANG Newspapers for seven years.

Voros replaces Stephen R. Trousdale, who has accepted a post as deputy business editor of the San Jose Mercury News, also a MediaNews property.

Michelle Coffey, currently on the night news desk at the Contra Costa Times, will become deputy business editor. Coffey has been with the Times for a year. Prior to that, she was with the San Diego Daily Transcript, a daily business newspaper.

Voros and Coffey will be based in Walnut Creek.