The offense brings two quarterbacks onto the field for a play. This is typically utilized when a team's second or third-string quarterback has dual-threat ability, confusing the defense as to how the play will develop, and who will be passing the ball. Teams may keep one of the quarterbacks far wide as a receiver and throw a screen pass to him on a Double Pass play, where he then throws deep downfield or across the field to the scrambling quarterback. An early use of two quarterbacks was pioneered by the San Francisco 49ers, who in the late 1950s had certain sets where both Y. A. Tittle and John Brodie were on the field at the same time. Seneca Wallace and Matt Hasselbeck were used in this package by the Seattle Seahawks in 2009. In Week 8 of the 2008 season, the Baltimore Ravens lined up Troy Smith at halfback next to Joe Flacco in the shotgun. Flacco handed the ball off to Smith, who rolled to the right, and then lobbed the pass back down the sideline to a sprinting Flacco for a gain of 43 yards.