By Chris Rosvoglou During the latest episode of HBO’s The Shop, Lakers star LeBron James discussed a plethora of topics. He even revealed what drives him on the court to this day. It turns out James is obsessed with having a “championship or bust” mentality. In fact, he’s so committed to having that type of pressure on his shoulders that he has sleepless nights when that feeling isn’t reciprocated by his teammates. “I’m obsessed with win or bust and what makes me have sleepless nights is when you don’t have everyone feel the same on your own club,” James said. Talk about being committed to the…