KGO 810 has cut many of its contributors including Chronicle columnist Chuck Nevius, according to a report by the Chron’s SFGate. Earlier reports of staff firings were incorrect, an unnamed KGO exec told SFGate, but some of the contributors are gone. Since KGO’s switch from “news talk” to mostly news began two years ago, ratings have plunged. In January, news and program director Paul Hosley was shown the door. In recent months, there have been rumors that KGO would return to its old format of news talk. The station has denied those rumors.