Pantaloni has held various positions in AC Ajaccio's staff since 2001.[3] When assistant coach in September 2004, he was put in interim charge when Dominique Bijotat was sacked with the team in last place in Ligue 1,[4] and held this position for a month until the appointment of Rolland Courbis.[5]
In December 2008, Pantaloni ended a six-month hiatus by returning to Ligue 2 Ajaccio, being named assistant to José Pasqualetti in the new year and succeeding him upon his resignation in February.[6] In 2010–11, his first full season, he led the club to promotion as runners-up behind Évian TG, ending a five-year exile from the top flight; he resigned in June 2012, having kept them up with a 16th-place finish.[7]
Pantaloni had his first job outside of ACA in June 2013, signing a two-year deal at Ligue 2 club Tours FC.[8] He resigned in October 2014 with the club second from last, having lost eight of eleven fixtures.[9] He returned to familiar surroundings days later, replacing the sacked Christian Bracconi at 12th-place Ajaccio.[10] In 2017–18, he led the club to a promotion play-off place, and they defeated Le Havre before a 4–0 aggregate loss to Toulouse.[11] He led Ajaccio to a 2nd place finish in the 2021–22 season, securing promotion to Ligue 1.
^Mangon, Angélique (5 November 2014). "Olivier Pantaloni de retour à l'ACA" [Olivier Pantaloni back at ACA] (in French). France 3. Retrieved 21 November 2019.
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