"New broom" is an expression that refers to a newly appointed person in charge of an organization or a department. This individual is expected to bring new ideas, make changes and improvements. Other synonyms for "new broom" include "fresh blood," "agent of change," "reformer," "trailblazer," "innovator," "groundbreaker," and "breaker of traditions." These metaphors are often used in business, politics, and other areas where new leaders are brought in to shake things up and bring a fresh perspective. The word "new broom" has a positive connotation, and it is an excellent way to describe individuals who bring energy and enthusiasm to their new roles.