He had been in charge of the team since 2020.
ASVEL parts ways with head coach TJ Parker

LDLC ASVEL Villeurbanne has announced its decision to dismiss head coach T.J. Parker following the team’s poor start to the 2023-24 season in both the Turkish Airlines EuroLeague and the French League.
Four games into the new EuroLeague season, ASVEL has a 0-4 record after losing 94-73 to Crvena Zvezda Meridianbet Belgrade, 62-88 to Partizan Mozzart Bet Belgrade, 89-84 to Anadolu Efes Istanbul and 101-86 to Fenerbahce Beko Istanbul. The last two defeats came during the first double-round week of the season.
"Following a poor start to the season, the club's management decided to part company with coach T.J. Parker, effective immediately," the club said in a statement. "As of this Sunday, the professional team will be temporarily managed by the duo Jean-Christophe Prat and Pierric Poupet" who have been Parker's assistants this season.
"Having arrived at the club in 2013 as an assistant, T.J.Parker has built up his experience in a series of 'lieutenant' roles with Pierre Vincent. J.D. Jackson (French champion 2016) and then Zvezdan Mitrovic (French champion and French Cup winner 2019). Logically promoted to head coach in 2020, he enjoyed immediate success, sweeping all the trophies on the national stage (French champion 2021 and 2022, French Cup winner 2022 and Leaders Cup winner 2023).
"Always forthright in the face of even the most unjustified criticism, T.J.Parker has shown unfailing determination and commitment during his 10 years with LDLC ASVEL. The whole club thanks him for his energy and loyalty throughout this long adventure, and wishes him all the best for the rest of his career."
Since taking over the head of ASVEL's bench, Parker compiled a 31-69 record in the EuroLeague. His highest finish with the team was 14th place out of 18 teams in his first season, 2020-21, when ASVEL had a 13-20 record. That fell to 10-22 and and 14th out of 15 the next season, 8-26 and last out of 18 teams last season. ASVEL and ALBA Berlin are the only winless teams so far this season.