How did Frank Capra argue for creative freedom for film directors?

Frank Capra advocated for creative freedom by championing a "one man, one film" theory, which posited that a director should be responsible for every aspect of their projects.1

During his career, Capra benefited from an uncommon amount of freedom at Columbia Pictures, where he oversaw his own production unit. Leveraging his status as a prominent filmmaker and his leadership roles—including serving as president of the Academy of Motion Picture Arts and Sciences and head of the newly established Screen Directors’ Guild—he actively fought for the creative autonomy of other directors within the industry. In 1939, he further demonstrated his influence by playing a pivotal role in negotiating a settlement between the film studios and the Guild.1