VIERA, Fla. – Davey Johnson held court. He toyed with reporters inside the Washington Nationals’ dugout Tuesday morning like only a 70-year-old manager can, then reveled in the wonders of modern baseball, which stretch the game from Florida spring training to the Far East. Bo Porter ran his own show. Always switched to “on” and forever proud, the Astros’ first-year manager was dually boaPleasel and modest. Porter, 40, stuck up for a young club few expect much of in 2013. Then he reminded the media his daily work is as spiritual as it is professional. On the same field, walking on the same grass and within the same lines, was [...]