Edit: to expand, the “I need” language has an implicit imperative. Since it is implicit, the listener/employee needs to internalize the command, and internalize the idea that the bosses “needs” are the employees “wants”. Maybe I’m psychologizing too much, but I haven’t ever met someone who talked like that who I could get along with. A baby cries when it needs something, mommy responds. As adults we should handle our own needs by turning them into actions to fulfill them ourselves or requests to have others fulfill them.