Last year they went undefeated in the regular season, playing a number of close games before getting the doors blown off them in the College Football Playoff.With huge games against Georgia and Michigan looming, Kelly wants to tighten everything up.The Fighting Irish will return to the field this Saturday for their home opener against New Mexico. They are favored by 34.5 points.The game will be played at 2:30 p.m. EST and will air on NBC.Did the Irish spend their early bye week wisely? ARLINGTON, TEXAS – DECEMBER 29: A Notre Dame Fighting Irish cheerleader waves a flag during the College Football Playoff Semifinal Goodyear Cotton Bowl Classic against the Clemson Tigers at AT&T Stadium on December 29, 2018 in Arlington, Texas. (Photo by Kevin C. Cox/Getty Images)After a convincing win over Louisville in Week 1, Notre Dame spent Week 2 on a very early bye. But they made the most out of their early break.Head coach Brian Kelly revealed on Monday that Notre Dame spent their free weekend practicing more than usual. In fact, he got the entire team together for a full scrimmage – a rarity for bye weeks.Via Tom Loy of Irish Illustrated:“…they took full advantage of the bye week… even scrimmaged on Saturday on a bye week, which is not something they normally do… They want to come out and play better.”Notre Dame beat Louisville 35-17 in Week 1, but failed to cover the 20-point spread in that game. Louisville was largely expected to be in serious rebuild mode in its first season under Scott Satterfield, but hung in with Notre Dame. There was definitely discussion that the performance was disappointing.