But even if it does, whatever happens next, Episode 9 (“Desire Is All You Need”) did little to reassure fans that “Yellowstone” can get by without Costner. Many of the storylines still dangling hinge on Costner’s presence. How much do we care about the pipeline being built if John’s not there to stop it? What about his longstanding rivalry with Thomas Rainwater? What about Summer (Piper Perabo), and their weird little hippie/cowboy relationship? What about his showdown with Jamie, his questionable connection with Kayce, or a proper goodbye to the daughter who devoted her life to him? Heck, what about the financial decisions he’s made to keep the ranch running amid an outbreak of brucellosis — decisions that he made, and he should address?