A variant is to have one of the recipients of the handoffs and throw the ball himself; if the passer runs in an arc deep enough into the backfield and the reverse forestalls the pass rush, it provides plenty of time for the passer to make a proper read, unlike the normal flea flicker. Dual Quarterbacks: 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. A variant of this is to send two quarterbacks onto the field, then place one in a wide-receiver position near the sideline nearest the team bench to make it appear as if the second quarterback is coming off the field. In Week 3 of the 2014 season, the Cleveland Browns executed a version of the play where they switched out quarterback Johnny Manziel for Brian Hoyer. Manziel walked over to the sideline, appearing as if he was talking with offensive coordinator Kyle Shanahan. However, Manziel was lined up on the field, off the line of scrimmage. Hoyer snapped the ball, which prompted Shanahan to signal Manziel to run his route. The pass was completed for a 47 yard gain to a wide open Manziel, but was called back for an illegal shift by running back Terrance West. The use of dual quarterbacks in this manner has unusual statistical side effects; the 2015 NFL season saw Matt Cassel officially considered the Buffalo Bills' opening day starting quarterback because their first offensive play was a two-quarterback trick play with usual starter Tyrod Taylor as wide receiver. Cassel never played another down for the Bills.