不在其位，不谋其政

bùzài-qíwèi, bùmóu-qízhèng

[He who is not in a particular office has nothing to do with plans for administration of its duties] 不担任某职务, 就不去过问某职务范围内的事

圣人云, 不在其位, 不谋其政; 既在其位, 必谋其政。 --元·无名氏《临潼斗宝》