sentences:  On January 15, 2015, Spagnuolo rejoined the New York Giants as defensive coordinator, serving under head coach Tom Coughlin in 2015 and then under head coach Ben McAdoo in 2016.The Giants finished 30th in the NFL for defense his first year back, but rebounded to have the league's second best defense in 2016, which fueled the team to an 11-5 record.Spagnuolo became interim head coach of the Giants after a house cleaning by the organization after the firings of McAdoo and General Manager Jerry Reese on December 4, 2017.