49ers general manager Trent Baalke admitted this week that the team has extended an "olive branch" to quarterback Alex Smith. Smith can't sign with San Francisco -- or any other team -- until the labor situation is settled and free agency begins. New coach Jim Harbaugh already has expressed confidence in Smith as a quarterback in his system, and Baalke made it clear that the 49ers made an offer for the free agent to return. "It's up to Alex to make the decision on whether he wants to be a 49er again," Baalke said. "I think Jim's made it clear. We've made it clear through the process that the olive branch has been extended."