Classically trained chefs know how to make a Hollandaise sauce. That is not true of all chefs who enter Masterchef. Despite what they make say.
Taken from Old French “chief” the word “chef” means “head” or “leader.”
Professional chefs do the work of understanding how to meet our expectations. And that’s what makes them leaders. Great chefs exceed our expectations and that’s what makes them great.
The rest we should call cooks.