do a job out of one’s domain ❍ 市长指示要把所有～的人才都调动到适当的岗位上。The mayor has issued the direction to transfer to appropriate posts all the talented people who have been assigned jobs out of their domains.
用非所长yong fei suo chang
fail to make use of sb.’s strength
用非所长
cannot put one’s special skills to the best use; fail to make use of sb’s strengths