The Oakland Tribune has moved back to downtown Oakland, where the action is, as publisher Mac Tully puts it. In 2007, the 138-year-old newspaper left the iconic Tribune Tower for an office building near I-880, across from the Coliseum. “It was a good location, but we weren’t near the action,” Tribune Publisher Mac Tully said. So now the Tribune has moved into a former Wachovia Bank branch at 1970 Broadway, across from Sears, in the city’s Uptown district. At the new location, the Tribune will have a media lab where residents can take classes and meet with reporters. The media lab concept is a companywide initiative at MediaNews Group.