Last season was a strange one for the 49ers' third-string quarterbacks. Over the course of the preseason and regular season, San Francisco added and then dropped Seneca Wallace, Scott Tolzien, B.J. Daniels, John Skelton and McLeod Bethel-Thompson.Will it be the same thing in 2014?As the 49ers get ready to enter rookie minicamp, organized team activities, full-squad minicamp and training camp in July, San Francisco is set with Colin Kaepernick and Blaine Gabbert as its Nos. 1 and 2 quarterbacks. But the No. 3 QB job will be up for grabs between Bethel-Thompson, who was brought back, and undrafted free agent Kory Faulkner of Southern Illinois.Bethel-Thompson, who played at UCLA and Sacramento State, has played in the Arena Football League, United Football League and has been with the 49ers, Dolphins and Vikings of the NFL, but has yet to throw a pass in a regular-season game. Like Faulkner, Bethel-Thompson was an undrafted free agent, in 2011. Unless the 49ers pick up a veteran later this offseason – always a chance, given the carousel of No. 3 QBs last season – either Bethel-Thompson or Faulkner will emerge as the team's emergency-situation QB for 2014.Faulkner is a...