The Orlando Magic host the Boston Celtics in the NBA’s best game Thursday night, three days after they were embarrassed in Beantown. And no one should be more embarrassed than Jameer Nelson. Nelson has gotten off to an awful start this season. He appeared to turn a corner last week with a pair of 17-point games, but that turn only took him down a dark alley. In Monday’s 87-56 loss, Nelson “piloted” the Magic’s offense to the lowest total in franchise history.