Newcomer quarterback Seneca Wallace will get into the game on Sunday against Minnesota. So will Colin Kaepernick, Colt McCoy, Scott Tolzien and B.J. Daniels.
"We'll split it up five ways," said Jim Harbaugh, who added that the plan remains for Kaepernick to start and for McCoy to be the second passer to enter the game for the 49ers.
Wallace (Cordova High, Sacramento City College) was released by the Saints on Monday, and he said the 49ers contacted him shortly thereafter. Harbaugh said it was rare to find a nine-year veteran with athletic skills like Wallace's at this stage of the preseason.
"There's numerous plays in our system that he's done before, whether it's Cleveland or Seattle," Harbaugh said. "So it's just a matter of learning how we call them and getting familiar with the quarterback-center exchange. The timing with the receivers may not be precise and exact. But to get out and play and compete - we feel he can do that."
Offensive consultant Eric Mangini was in Cleveland when the Browns traded for Wallace and Mangini supported the move, Harbaugh said. "(He) felt like he could do a lot of the things that a quarterback that can move could do in our system," Harbaugh said. "Thought it would be worth exploring."
Wallace, who will wear No. 18, said he'll get a package of plays to use against the Vikings. "It's very similar," he said of the 49ers offense and the ones he's run before. "The only thing is, you've just got to put it in their terms. Obviously, West Coast (offense) is West Coast. Everybody just puts their own spin on it."
The only quarterback in doubt for Sunday is Tolzien, who hasn't practiced in full since the Chiefs game. Harbaugh said Tolzien "was working through something" but the hope is that after a day off yesterday he'll be able to practice today. The 49ers practice at 4 p.m. It will be Wallace's first with his new team.
-- Matt Barrows