consultant, a kind of professional title, refers to a person who has a certain professional knowledge and is consulted by individuals or organizations. (Excerpted from Xinhua Dictionary) So as the name implies, the consultant only provides some suggestions, and there is no responsibility or obligation to bind him. Personally, I feel that there are fewer and fewer empty jobs now. If you want to achieve any purpose, it is better to hire some full-time people directly than consultants.