LOS ANGELES – Imagine the offensive force Yasiel Puig can and/or will be once he masters the nuances of base running. The problem is, he's nowhere close to the nuances.Dodgers coach Davey Lopes, who stole 557 career bases, spent part of Tuesday afternoon in the muggy afternoon sun at Turner Field teaching Puig some of the more basic points of taking leads from first base. Dee Gordon joined in the discussion at one point.Puig, who is among the fastest players in the National League, has just seven stolen bases, 44 fewer than Gordon, the major-league leader.