hatch·et man
noun/ˈhætʃɪt mæn/
/ˈhætʃɪt mæn/
(informal)- a person employed by an organization to make changes that are not popular with the other people who work there
“刀斧手”（受雇进行不受欢迎的改革的人） Word Originlate 19th cent. (originally US): figuratively, from an early use denoting a hired Chinese assassin.