The Dallas Cowboys' president and general manager, Tex Schramm, insisted yesterday the National Football League's bid to have the "Al Davis case" reviewed by the Supreme Court was not dead, but said the principle issue had been lost in the squabble over the Oakland Raiders' move to Los Angeles.

The Supreme Court declined Monday to hear the NFL's appeal of a lower court's ruling that the Raiders were within their rights when they moved to the Los Angeles Coliseum.

Schramm said, however, that the key element of the case has nothing to do with the Raiders' move.

He said the key element is: "If we (NFL teams) are, in fact, economic competitors . . . Our point was that we are a partnership . . . "

Schramm said if the case is ultimately lost, an attempt likely would be made to obtain legislative relief in the form of an anti-trust exemption . . .

The San Francisco 49ers have offered holdout defensive end Fred Dean a $2-million insurance policy and $25,000 a game, according to the San Jose Mercury News. Dean's agent, Dave Perrine, said the offer was rejected . . .

Atlanta Falcons quarterback Steve Bartkowski, who sprained his right knee in Monday night's 27-14 loss to the Redskins, will not play Sunday against New Orleans. He was injured on a second-quarter tackle by linebacker Monte Coleman. Mike Moroski, who played the rest of the game, will start Sunday, the Falcons said . . .

Running back Franco Harris, 34, is hoping to continue playing, according to his agent.

Harris, the third leading rusher in NFL history, was waived Oct. 30 by Seattle. He gained 170 yards on 68 carries in eight games with the Seahawks. He signed with them Sept. 5 after being waived by the Pittsburgh Steelers . . .

Dallas coach Tom Landry said he expects Gary Hogeboom to start at quarterback Sunday against St. Louis, because Danny White's left shoulder, severely sprained against the Giants, is likely to be too sore for him to practice this week.