"I’ll just teach the guys as much as I can about how they rush and what type of moves they have or how they’ll react to something -- all I can do," Baas said on Wednesday.
But will Baas be on the field Sunday?
The 30-year-old veteran missed last Sunday's win over New England with a knee injury. He said he was limited on Wednesday but is optimistic about playing.
"I think there’s a good chance. It all depends on how it reacts. We’ll see tomorrow," he said.
Baas said he has no hard feelings toward the 49ers. He even contemplated returning to the organization during his free-agency.
"I liked David. He is a tough guy who moved guys out the way," San Francisco running back Frank Gore said. "He has a crazy looking face and I was kind of hurt that we lost him."
REUNION FOR GORE AND ROLLE:Antrel Rolle and Frank Gore will be renewing an old NFC West rivalry from Rolle's days as an Arizona Cardinal on Sunday. But it goes deeper than that. Rolle and Gore played against one another in Miami and grew up together playing youth football in Florida.
"I have known Frank since we were little, playing Pop Warner. I am very familiar with his game," Rolle said.
Gore even said he remembered one of those Pop Warner games.
"He was a running back and I was a running back. They beat us 20-26. I had about 200 yards and he had a good game. I remember it like it was yesterday," Gore said.
The Niners running back will present a big challenge for the Giants on Sunday. Gore is fifth in the NFL with 97.8 yards per game and is averaging 4.9 yards per carry.
"It's going to take more than me," to bring Gore down, Rolle said.