Dixon, meanwhile, will be counted on to replace Gore's power running style. That means that the 233-pound puppy has to remember he's a big dog.
"He has to learn that in this league, no one is fast enough to make guys miss the way he was trying to do it as far as dancing and things like that," Westbrook said. "Especially with his size, he has to think more downhill football. If he does that, he'll be all right."
Dixon, a sixth-round pick, was accustomed to juking defenders with his deceptive agility while at Mississippi State. He looked just as elusive against NFL backups during the preseason, when he led the league with 300 rushing yards and four rushing touchdowns.
Dixon might to want to be the next Barry Sanders, but the 49ers want him to be more like more like John Riggins. Singletary urges the rookie to pound away like a sledgehammer.
"Every day," Dixon said. "He wants me to be power, you know? I tell him all the time 'I'm power, coach, but I dance well. I've got good hips, Coach. I've got good feet, too.'
"I know what he wants me to do, and I'm going to be there for the team. That's all I'm concerned with."
Westbrook ran for 136 yards against the Cardinals and Dixon ran for 54. Before he got hurt, Gore had time to rush for 52, giving the 49ers three players with at least 50 yards for the first time since 1998.
That was done against one of the NFL's worst defenses. On Sunday, the 49ers face a Packers defense allowing a league-fewest 15.1 points per game. The key for offensive coordinator Mike Johnson will be figuring out how to use the backs to complement each other.
"Well, we have to adapt a little bit. You know Frank is a big part of our offense," Johnson said. "I think (Westbrook and Dixon) are up to speed now, and now they'll be forced to do some things that Frank did for us. I think they're ready, they're capable, and they'll do a good job for us."