It's not about the read option, which wasn't particularly effective or noteworthy in the 49ers' final two games. It's not about Kaepernick's running ability, even though he broke the NFL record for rushing yards by a quarterback in a game when he ripped the Green Bay Packers for 181 yards in a divisional playoff win. Kaepernick can spin it as well as anyone from the pocket or on the move. Teams often play zone coverage against Kaepernick so defenders don't turn their back to him. But his accuracy and arm strength slice up the gaps in those zones.