DeGeorge began his coaching career as an assistant with the Beloit College basketball team for head coach Knapton in the 1993–94 season.[5] He subsequently was an assistant for the Lawrence Vikings from 1994 to 1999 and for the Grinnell Pioneers from 1999 to 2000.[5] He was the recruiting coordinator at Grinnell and learned the run-and-gun playstyle there, which he utilized later in his career as a head coach.[2]
DeGeorge received his first head coaching job with the Division III Eureka Red Devils in 2000, serving four seasons in the position.[3] He brought the team from having had a mere two wins the year before he arrived to 17 wins by his final season, which was their best record in over 10 years.[3] DeGeorge then was hired by the Cornell Rams and served with the team from 2004 to 2009, helping them have their first NCAA tournament appearance.[3] He helped the 2008–09 Cornell team win the Iowa Intercollegiate Athletic Conference (IIAC) championship, with DeGeorge being chosen the IIAC's Coach of the Year.[8]
DeGeorge was hired as the head coach of the Rhodes Lynx in 2010.[8] He served in the position for eight seasons, coming in after the team had recorded 10 straight losing seasons.[6] He helped them share the Southern Athletic Association (SAA) championship in 2012–13 and repeated in 2014–15.[6] He was named the SAA Coach of the Year for the 2016–17 season, in which his team were the national leaders in assists, won the SAA championship, and made their first NCAA Division III Tournament appearance in 24 years.[6][9]
In 2018, DeGeorge became the head coach of the Division IIColorado Mesa Mavericks.[10][11] They had won 19 games total in the two seasons before his arrival, but he led them to 19 wins in his first season there.[5] He then helped them win consecutive Rocky Mountain Athletic Conference (RMAC) championships in his second and third seasons, which were the first RMAC titles in school history.[6][12] He ultimately served six seasons with the Mavericks and reached five NCAA tournaments while having an average of 23 wins per season; DeGeorge was the RMAC and NCAA West Region Coach of the Year in 2020–21 (when he helped Colorado Mesa finish the regular season ranked first nationally) and received the RMAC Coach of the Year award a second time for the 2022–23 season.[5][6]
In March 2024, DeGeorge received his first Division I coaching job, being named the head coach of the Cal Poly Mustangs.[5]
National champion
Postseason invitational champion
Conference regular season champion
Conference regular season and conference tournament champion
Division regular season champion
Division regular season and conference tournament champion
Conference tournament champion