Call me crazy but I’m feeling some sympathy for Barry McCarthy, who has been the new C.E.O. of Peloton since February 9. He’s got a brutal assignment ahead of him: turning around the fortunes of the once high-flying exercise equipment company with the hyped-up mission to use “technology and design to connect the world through fitness” and “empowering people to be the best version of themselves anywhere, anytime.” Let’s face it, that’s a tall order during the best of circumstances, let alone the one McCarthy inherited. Peloton, which was once worth more than $50 billion during the height of the workout-from-home-forever depths of the pandemic, is now worth around $9 billion. Its stock is down 83 percent from its all-time high on Christmas Eve 2020. In 2021, Peloton was the worst performing stock in the Nasdaq 300 Index.