Jayson Werth trotted to center field and took his position almost every game this September, a decision still reverberating as the Nationals march through the offseason. They wanted to know if Werth could play center. They determined he can, and now the possibility colors their search for a center fielder, the complexion of their outfield and maybe even the starting point of uber-prospect Bryce Harper. The Nationals are prepared to trade for a center fielder. But they do not feel forced to, in large part because of Werth's experience this fall. And today, Werth sent word he would be plenty open to playing center field, or anywhere in the outfield, for that matter.