On the 11th, the Orix Buffaloes announced the departure of Katsumi Mizumoto, the roving coordinator coach, following the expiration of his contract term. Joining from Hiroshima in 2021, he contributed to the team's three consecutive league championships starting that same year as the head coach. He understood the baseball philosophy and tactics of former manager Satoshi Nakajima, who is from the same academic year, and implemented them among the players as a skilled strategist. Last season, he devotedly supported Manager Mamoru Kishida during his first year in office. In his sixth year with the team this season, he has been teaching enthusiastically in both the first and second strings as a roving coordinator coach.

On this day, the resignations of pitcher coach Masafumi Hirai, pitcher coach Rui Makino, and outfield defense and base running coach Shintaro Yoshida were also announced. On the 4th, the resignations of head coach Toshio Haru and batting coach Keizo Kawashima had also been decided. The team finished in 4th place with 11 games under .500, falling into the B-class for the first time in two years. In the next season, which will be Director Kishida's third year in office, the team will aim for a comeback under a new structure.