All offenses are not created equal. In fact, some are so loaded with talent at the skill positions that you'd think you could pull a guy out of the stands to play quarterback and get the ball to the key weapons.
Keep those offenses in the back of your mind on draft day. As the draft creeps into the later rounds and you have your No.1 and No. 2 quarterbacks set, see if you have a roster spot for a third.
If you do, you may want to take a reach on one of these five backup quarterbacks who could step into a starting role and flourish based on what's already around them.
Yates filled in admirably for the Texans last season after Matt Schaub went down.
If the same were to happen again, Yates would inherit would one of the league's most explosive offenses, a unit led by Andre Johnson and Arian Foster.
Until the Drew Brees' contract dispute this offseason, I thought Daniel had a clipboard surgically attached to his hand.
Should the worst case scenario happen and Brees go down, Daniel is postured to take over one of the league's elite offensive machines.
The Giants are solid all over the field offensively.
Should anything happen to Eli Manning, David Carr is ready to pilot the ship. Having already handled the pressure of being a No. 1 overall pick, Carr should be able to handle the pressure of playing in the shadow of the Big Apple down the stretch.
A classic case of "where are they now," Mallett sits behind Brian Hoyer on New England's depth chart playing the role of opposing quarterback in practice.
Make no mistake, however, if something were to happen to Tom Brady and the Pats were still in the hunt, Bill Belichick would not hesitate to hand the reins over to one of the most prolific passers in recent college football history.