役やく替がえ

noun, noun or participle which takes 'suru', transitive verb

change of post; role change

Refers to a reassignment or rotation of duties, often in an organizational or theatrical context.

• 来らい月げつ、部ぶ署しょの役やく替がえがあるらしい。

  Apparently there will be a change of posts in the department next month.

• 歌か舞ぶ伎きでは、役やく者しゃが役やく替がえをすることがある。

  In kabuki, actors sometimes switch roles.