Difference between Quarterback and Signal Caller

QUARTERBACK vs SIGNAL CALLER: NOUN

An offensive back whose primary job is to pass the ball in a play
The offensive backfield player whose position is behind the line of scrimmage and who usually calls the signals for the plays and receives the ball when snapped.
(football) the person who plays quarterback
The position of the football player in the backfield who directs the offensive play of his team

(football) the person who plays quarterback
The position of the football player in the backfield who directs the offensive play of his team

Halfback, Rusher, Backfield, Cornerback, Wide receiver, Linebacker, Tailback, Rear, Back, Strategist, Gambler, Captain, Player, Field general, Signal caller

Hurler, Receiver, Returner, Placekicker, Fullback, Wideout, Linebacker, Backfield, Cornerback, Halfback, Rusher, Wide receiver, Tailback, Field general, Quarterback

Receiver, Placekicker, Fullback, Halfback, Rusher, Backfield, Cornerback, Wide receiver, Linebacker, Tailback, Rear, Back, Captain, Player, Signal caller

Starter, Hurler, Receiver, Returner, Placekicker, Fullback, Wideout, Linebacker, Backfield, Cornerback, Halfback, Rusher, Wide receiver, Tailback, Quarterback

Adding a quarterback in the Draft makes sense.
After taking quarterback David Carr with the No.
AFC South in which the best quarterback is on a team in chaos and the two best teams are challenged at the quarterback position.
According to Ian Rapoport of the NFL Network, the Lions are set to interview former NFL quarterback Mark Brunell for their quarterback coach position.
NFL quarterback and current analyst Dan Orlovsky breaks down his favorite route combination and describes how former NFL quarterback Peyton Manning would execute it.
Super Bowl when your quarterback room is the least gifted in the building, even if that quarterback himself is perfectly fine.
Draft a quarterback in this quarterback heavy draft to a team friendly rookie contract.
Throughout his career, Schaub has been both a starting quarterback as well as a back up quarterback.
In the ongoing quarterback battle, redshirt freshman quarterback Brady White appears to be the frontrunner.
Mannings with one quarterback father and two quarterback sons.

Word is that they will be declining the fifth-year option on their starting signal-caller's contract.
Jets released backup signal caller Mike White, who had been promoted from their practice squad three weeks prior.
The 31-year old signal-caller completed just 3 of 13 passes for 35 yards and no touchdowns.
His first game as the signal caller was Saturday against Presentation College in South Dakota.
Fitzgerald also knows his defense must be ready for Iowa's new signal caller.
The Tigers already have one signal caller on board, could they take another?
Super Bowl champion signal caller will undoubtedly give his squad a boost.
Northwestern product is starting to look like a star signal caller.
Columbia said the Indians' signal caller could present some problems.
Super Bowl Champion signal caller with the Dallas Cowboys.