The Broncos switched quarterbacks again, as Coach Mike Shanahan yesterday replaced Brian Griese with veteran Bubby Brister.

"I just think this is the best thing for our football team right now," said Shanahan, whose team went 0-4 under Griese. "We think this is going to give us a chance to win now."

The Broncos also placed RB Terrell Davis on injured reserve, officially ending his season.

"The question is, what can we do to give us the best chance to get out of this slump?" Shanahan said. "Brian played well on Sunday and we had a chance to have four touchdowns in the first half. But the bottom line is, we didn't get it done."

Brister, 37, vowed to get the team back on track.

Griese, 24, said he was surprised by the decision but added, "I understand that we're 0-4 and something needs to change."

C. CARTER AILING: Vikings WR Cris Carter's streak of 100 consecutive starts could come to an end Sunday. He has an injured left hip flexor that kept him out of practice. Carter said he wouldn't play if he's not healthy enough to be more than a decoy against the Bears. . . .

The Falcons have moved to their second option to replace Jamal Anderson, making second-year RB Ken Oxendine the starter. Oxendine, from Virginia Tech, will replace Byron Hanspard when the Falcons play the Saints Sunday.