Oakland dumping Coliseum development: What’s next for Raiders?

Oakland Raiders' Khalil Mack is introduced before playing Arizona Cardinals in preseason game at O.co Coliseum in Oakland, Calif., on Sunday, Aug. 30, 2015. Oakland Raiders' Khalil Mack is introduced before playing Arizona Cardinals in preseason game at O.co Coliseum in Oakland, Calif., on Sunday, Aug. 30, 2015. Photo: Scott Strazzante, The Chronicle Photo: Scott Strazzante, The Chronicle Image 1 of / 33 Caption Close Oakland dumping Coliseum development: What’s next for Raiders? 1 / 33 Back to Gallery

Oakland officials are expected to pull the plug next week on the ambitious Coliseum City development plan that was intended to lay the groundwork for new stadiums for both the Raiders and A’s.

The plan was first rolled out in March 2012 by then-Mayor Jean Quan and local business leaders. The idea was to put together a public-private partnership that would transform the Coliseum site into a mega-sports, retail, tech and housing center that would bring as many as 32,000 jobs to the area.

Persuading someone to finance the plan, however, proved to be as elusive as a Raiders winning season — despite the city spending $3.5 million on various studies. At one point, Quan said the crown prince of Dubai was ready to pour a fortune into the project, but the royal money never materialized.

A year ago, Quan, who was fighting for re-election and desperate to keep the plan from dying, brought in San Diego businessman Floyd Kephart.

Kephart couldn’t deliver on his financing promises, but the fact that the City Council handed him exclusive negotiation rights kept the city from looking elsewhere as the Raiders, in particular, turned a wandering eye to other cities.

So what’s next?

“I think the city and county will try to negotiate directly with the two teams,” said Alameda County Supervisor Nate Miley, a member of the city-county Coliseum Authority. At the same time, the county will be working to sell its half of the site to the city.

Oakland Mayor Libby Schaaf said one of the biggest challenges will be to convince Raiders owner Mark Davis that there’s no way the city can pick up the tab for a $1 billion, football-only stadium — and that he may have to take on some new partners if he wants to finance a deal.

Davis, of course, could also decide to pull up stakes and head to the Los Angeles suburb of Carson, where he’s explored the possibility of building a joint stadium with the San Diego Chargers.

“I can lead a horse to water,” Schaaf told a fan during an audience Q&A at the Dreamforce convention in San Francisco this week, “but I need you to make Mr. Davis drink.”

San Francisco Chronicle columnists Phillip Matier and Andrew Ross typically appear Sundays, Mondays and Wednesdays. Matier can be seen on the KPIX TV morning and evening news. He can also be heard on KCBS radio Monday through Friday at 7:50 a.m. and 5:50 p.m. Got a tip? Call (415) 777-8815, or e-mail matierandross@sfchronicle.com. Twitter: @matierandross