HOUSTON — He broke character halfway up the first-base line, before the baseball he bludgeoned found a home within some right field seats. Aaron Judge turned toward his dugout, flipped his bat, fired off an expletive and epitomized the ethos of a ballclub he captains. Baseball is, at its core, a kids’ game. Every three years, the World Baseball Classic offers a three-week reminder. Judge is the figurehead of this feared group, perhaps the best baseball team ever assembled under the Team USA umbrella. It has embraced everything that is exciting about the World Baseball Classic —...