ShowRunner

A showrunner is the top-level executive producer of a television (TV) series.[1][2][3][4] The position outranks other creative and management personnel, including episode directors, in contrast to feature films, in which the director has creative control over the production, and the executive producer's role is limited to investing.[5] In scripted comedy and drama TV shows, the showrunner also usually serves as the head writer (or its most prolific writer). The role of a showrunner is not present on all television series, especially outside the US; this article describes the nature of the role where it is present... The term showrunner was created to identify the executive producer who holds ultimate management and creative authority for the program. https://en.wikipedia.org/wiki/Showrunner