A management concept, originally championed by Apple, that good things come if someone is explicitly responsible for something. (related: diffusion of responsibility — “a sociopsychological phenomenon whereby a person is less likely to take responsibility for action or inaction when others are present.”; bystander effect — “a social psychological phenomenon that refers to cases in which individuals do not offer any means of help to a victim when other people are present.”)
Source:
Gabriel Weinberg’s Mental Models I Find Repeatedly Useful