Eric Grubman, the NFL executive vice president who oversees league affairs with regard to franchise retention and the Los Angeles opportunity, is still waiting for the city of Oakland and Alameda County to step up to the plate with an offer to keep the franchise.

“I have been to Oakland many times over the last four or five years,” Grubman said Wednesday at the NFL owners spring meeting at the Ritz-Carlton Hotel. “Each time I’ve gone there I’ve heard that the promise is right around the corner of a master development of that parcel that will include substantial proceeds from a developer, a third party, fourth party or multiple-party developers.

“I’ve heard that for three or four years and it hasn’t been produced and we have now lost all that time, the time has shrunk. No results have been produced. That, to me is going backward, because the time has shrunk but the probability hasn’t gone up.”

Raiders owner Mark Davis said Tuesday he has yet to see a plan from Floyd Kephart, who is attempting to assemble a plan to keep the Raiders in a facility that includes retail an housing on the current Coliseum site.

NFL commissioner Roger Goodell is scheduled to speak with the media Wednesday afternoon at the close of the league meeting.