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HOUSTON—The original idea to defy basketball doctrine came from James Harden. Not long after the Houston Rockets traded for him, they learned that Harden was an iconoclast. He liked shooting 3-pointers. Very long 3-pointers.
“What do you think?” he said to Houston general manager Daryl Morey.
He picked the right person to ask. Morey understood the importance of studying data before making decisions, and what he saw when he…