Derek Haas (photo:CBS) Writer, producer, and showrunner, Derek Haas will exit Wolf Entertainment when the current TV season ends. Haas is the co-creator, Executive Producer, and showrunner of NBC Universal’s Chicago Fire and CBS’s  FBI: International. He also developed and served as Executive Producer of Chicago Med, Chicago P.D., and the short-lived Dick Wolf series … Continue reading Chicago Fire co-creator / showrunner Derek Haas exits One Chicago