While games are decided on the field, the quality of any program in the country begins and ends with its head coach.
And because Notre Dame plays a national schedule on an annual basis, the Irish and head coach Brian Kelly match wits with some of the biggest names in college football week in and week out.
Facing the likes of Oklahoma, Michigan and Stanford on a weekly basis, Kelly has proven his worth and ability as a head coach, having guided the Irish to an undefeated 2012 regular season, which resulted in a berth in January's BCS National Championship Game.
But among the coaches on the Irish schedule, which is the most formidable?
The answer lies within.