SAN FRANCISCO -- Yasiel Puig said he'll play whatever position the Los Angeles Dodgers ask him to play and do his best, but he couldn't contain a wide smile when he was pressed on which position is his favorite."I can run more in center field," he said.If there's one thing Puig is about, it's motion. It's energy, overflowing stores of it. He seems to generate the stuff through nuclear fusion. He is so driven to be moving at all times, he admits he has felt constrained by the smaller patch of ground in right field.