Type the words "Notre Dame" and "Quarterback" into Google, and you'll find a catalog of articles about Everett Golson or Tommy Rees. That makes sense—both of them are Notre Dame football players and both of them play the position.
However, the quarterbacks set to define Notre Dame's season don't all wear a golden dome.
Twelve other signal-callers—at an absolute minimum—will line up against Notre Dame in 2013, and between injuries, mid-game replacements and a potential bowl game, it's almost guaranteed to be even more than that.
How Notre Dame fares in 2013 will revolve primarily around how its defense handles those opposing quarterbacks. This is a scary prospect.
Irrespective of how talented said defense is, some of the names on the schedule will be tough to stop.
Here are five in particular who might give Notre Dame trouble.