personnel change; personnel shift; reshuffle; (annual) staff reassignment
部長は人事異動で大阪へ転勤になった。
The manager was transferred to Osaka due to a personnel reshuffle.
春の人事異動が発表された。
The spring personnel reshuffle was announced.
新社長は就任後すぐに大規模な人事異動を実施した。
The new president carried out a large-scale personnel reshuffle immediately after taking office.