All four of the former 49ers quarterbacks led the Chiefs to the postseason and three of the four (Montana, Bono and Grbac) made it to the Pro Bowl while playing for Kansas City.
Montana retired after two seasons in Kansas City, Bono bounced to three teams in three seasons before his career ended and Grbac started 14 games for the Ravens in 2001, throwing 18 interceptions and just 15 touchdowns.