The four-game sweep the New York Yankees completed against the Baltimore Orioles on Thursday night did more than extend a winning streak. It underscored the widening chasm between two American League East teams moving in opposite directions. Aaron Judge, the Yankees' designated hitter and lineup anchor, produced multiple hits and several runs batted in, according to game reports. The Orioles, who entered the series already mired in a three-week slump, lost their fourth consecutive game. For Baltimore, the series exposed the consequences of a bullpen that cannot hold leads and a lineup that generates too few runs — structural problems that no single acquisition at the trade deadline will solve. The Yankees, by contrast, demonstrated that their offense can carry the team even when the pitching staff is not dominant. The question now is whether the Orioles have enough internal resources to arrest a slide that shows no signs of abating.