Tā shì gōngsī lǐ yǒumíng de dīngzihù, zěnme quàn dōu bù kěn huàn gǎngwèi.
He's the company's notorious holdout: however hard you try to persuade him, he won't change jobs.
Tips
culture
Picture a single house left standing like a nail in a cleared building site. The most famous case was a house in 重庆 in 2007, left perched on a pillar of earth in the middle of a deep construction pit.