Most significant move: It might actually be a move they did not make, at least not yet. The 49ers keeping third-string quarterback Josh Johnson, along with starter Colin Kaepernick and backup Blaine Gabbert defies convention or, at least, numerous projections. Many observers saw the Niners only keeping two QBs, with Johnson being shown the door. But with Gabbert getting banged up in the team's exhibition finale and Johnson putting on a show, completing 14-of-17 passes for 135 yards, three touchdowns and interception returned for a touchdown, the 49ers obviously felt the need to add depth under center.