KGO had, for a long time, an aging demographic problem. It became content to ride on glories of the past. Cumulus correctly perceived this and made the switch to an all-news format. Except it was "all news some of the time", which doesn't work all that well, and especially not for an entrant in the field up against KCBS and KQED-FM. The format itself was actually OK, with the smartest move being to delay the ABC network newscast so that they would start local at the top of the hour. At the time of the format, they might have been well advised to consider having traffic reports every 6 minutes - probably not so useful nowadays even though bad traffic is back in the Bay Area. In any event, the commitment ultimately wasn't there and, to make an all-news, or even "some news", format work, you have to have commitment. Plus money, which Cumulus also ran short of. So it was back to the talk shows, which tended to be erratic. The best that can be said for the sports-betting format is that it will have a small core of diehard listeners, even though most sports betting remains illegal in California; that, combined with low expenses, may enable it to eke out a tiny profit.
The transmitting site is useless for anything else, so probably no real-estate deals on that one.