How they got to this point is a bit mysterious. The Orioles are the worst-fielding team in baseball and, despite an early burst of home run prowess, one of the lightest-hitting. Their starting pitching has been wildly inconsistent. Only the bullpen — baseball's best, anchored by Mr. Johnson, who leads the major leagues in saves — has been reliable on a near-daily basis. Injuries to almost all the outfielders on the roster forced a head-spinning procession of call-ups from the minors. And yet, somehow, here we are.