It's always been my opinion that the infobox was supposed to offer an overview of a baseball playe's career; detail is left for the article. Rickey Henderson's infobox shows him as a Left fielder. He was the everyday starting center fielder when he was with the Yankees, and he played enough of the other two outfield positions to make the title "Left fielder" inaccurrate for him. "Outfielder" is the best, most accurate title for him. I've changed the infoboxes to reflect my opinion, however, it was undone by an argumentative editor wanting to war with me.