In 2015, a TV producer named Katie Neff stumbled across one of Joanna’s blogs and was immediately impressed by her work, as well as charmed by her family. At the time, Chip and Joanna had four children (they now have five), and were living on a farm. Initially, they both fell into a classic home renovation show pattern, of the woman leading the design, while the man was in charge of construction. That setup didn’t last for Chip and Joanna, who charmed the world using their authenticity.

Source: https://www.distractify.com/p/why-did-chip-and-joanna-leave-hgtv