https://cdnph.upi.com/ph/st/th/1071777053479/2026/upi/3153dcbd98e239a45dc3668059b93d5c/v1.5/Dutton-Ranch-creator-leaves-Yellowstone-spinoff-prior-to-premiere.jpg" /> Chad Feehan, the creator, executive producer and showrunner of "Dutton Ranch," has exited the "Yellowstone" spinoff ahead of its premiere.