Kerry Ehrin (showrunner, The Morning Show; co-creator, Bates Motel), Joby Harold (showrunner, Obi-Wan; John Wick 3; Army of the Dead), and Gina Ippolito (The Unicorn; Murphy Brown; Regular Show) talk about the overwhelming responsibility of showrunning, big stars, weighty expectations, improvising plotting, and the death of Chewbacca.