The Dodgers' blockbuster Tarik Skubal acquisition was supposed to be the final nail in the NL West coffin. Instead, Los Angeles has cratered since the deal, suffering eight losses in nine games — a stretch of baseball so ugly it turned the reigning World Series champs into the sport's most alarming story. Sunday's 4-2 loss to Arizona featured starter Justin Wrobleski coughing up four runs in just 3⅓ innings, and the Dodgers' slide has cast a harsh spotlight on a...