Cumulus Media has laid off Tom Tolbert and John Lund at KNBR ... The reorganization at KNBR, which broadcasts on 104.5 FM and 680 AM, also saw the dismissal of executive Lee Hammer, morning ...

And on Wednesday, San Francisco Giants radio play-by-play broadcaster Dave Flemming painted a rather bleak picture for both KNBR 680, the radio home of the Giants, and all of sports radio entirely.