When the Seahawks had four quarterbacks in for visits and workouts on Monday, the process to find a backup for Russell Wilson turned into a positional reunion for Carl Smith. Smith, who’s entering his third season as the Seahawks’ quarterbacks coach and 24th as an assistant coach in the NFL, had previously worked with three of them. He coached Brady Quinn, who agreed to contract terms on Tuesday; and Seneca Wallace while with the Cleveland Browns in 2009-10. He also tutored Matt Leinart when both were at the University of Southern California in 2004. The fourth QB was Tyler Thigpen.