If LeBron had stayed on the Cavs, he'd still be ringless. That team was a lottery team without him. It's a testament to LeBron's ability that they were able to make it to the finals. Nobody in basketball can do it alone. Jordan couldn't even win a single playoff series without Pippen, let alone a championship. It wasn't just Pippen either. Rodman, Kerr, etc.. That team was excellent.