There are many synonyms that can be used for the phrase "one the controls." These include terms such as "in charge," "managing," "directing," "supervising," "governing," and "commanding." Each of these phrases conveys a sense of authority and responsibility in directing a situation or group of individuals. Whether it be a pilot "at the controls" of an airplane, or a manager "in charge" of a team of employees, these synonyms all imply a certain level of power and influence over the outcome of a given situation. By using these alternative phrases, writers can add nuance and variety to their language, helping to more accurately convey the tone or mood of their message.