SAN FRANCISCO - For months, Mike Singletary pounded home the notion that San Francisco's identity would be as a power-run offense, with Frank Gore as the central figure.
Oh, how that's changed for the 49ers since they started the season with a win at Arizona.
San Francisco (5-7) has switched quarterbacks since the first meeting between the teams, as Singletary promoted Alex Smith at halftime against Houston on Oct. 25.
Singletary finally relented about his offense upon seeing the success Smith was having out of the shotgun and in a spread offense.
Yet Arizona is still counting on having to get through Gore if the Cardinals (8-4) are going to clinch a second straight NFC West title by winning this game.
