Answer
Blaine Gabbert replaced Kaepernick as a starter after he was benched in 2015. Kaepernick had been the starting quarterback for the 49ers since 2011, but he was benched in favor of Gabbert after struggling in the first few games of the 2015 season. Kaepernick eventually regained his starting job, but he was eventually released by the 49ers in 2017.