Often when the Dodgers head into the national TV spotlight, such as the playoffs, the question comes up: Why not pass the microphone to Vin Scully?  Even for an inning, we know that there are tons of people across the country who would enjoy hearing him broadcast, and the world could certainly survive for three or six outs without the usual ESPN, Fox or Turner crew.Kirby Lee/US PresswireVin Scully reacts after throwing out the first pitch before the 2009 Opening Day game against the Giants.Anyway, I asked an ESPN spokesperson to find out if such a move was being considered for the network's Opening Day broadcast of the Dodgers against the Giants, and the answer was no. In general, it seemed like a longshot, and in particular, I was told, ESPN is focusing on introducing its new Sunday