Kantzouris then became the interimhead coach of Brose Bamberg, after head coach Andrea Trinchieri was fired by the team, in February 2018.[1] He worked as Brose's interim head coach, until the club hired Luca Banchi, as its new permanent head coach.[2]
On July 3, 2022, after two successful seasons with Kolossos Rodou, Kantzouris was named head coach of AEK Athens.[3] On May 11, 2023, he parted ways with the club. On May 22, 2023, he signed with Limoges CSP.