Notre Dame achieved the improbable last season when it went from unranked in the preseason to the BCS National Championship Game.
After Notre Dame's heartbreaking loss in the championship game, the incoming 2013 class of freshmen—dubbed the Irish Mob 13—begins this fall under a cloud of unfinished business.
With several of last season's starters moving on to the NFL, there is plenty of opportunity to ascend the depth chart for the inbound freshmen.
Early enrollees, like James Onwualu and Steve Elmer, have already earned a backup position on the latest depth chart out of South Bend, but as the season progresses they are sure to challenge the incumbent players for the starting spots.
Let's take a look at four backups who will earn starting spots by the end of 2013.
*All star rankings referenced from Rivals.com