LOS ANGELES -- Don Mattingly has kept to the plan, spreading around playing time pretty equitably among his four outfielders.Yasiel Puig and Andre Ethier each have started 17 games. Matt Kemp has started 14 and Carl Crawford has started 14, but they were both out for the start of the season.The only real lesson so far -- and it's, of course, far too early to draw any sweeping conclusions -- is that the Dodgers have a better defensive look with Ethier in center field than Kemp.