Getty The St. Louis Cardinals have flipped the narrative. After starting 14-19 and reviving speculation about trading Nolan Arenado , Ryan Helsley , and even Sonny Gray , St. Louis has won 13 of its last 15 games . They’re just one game behind the first-place Cubs and look more like contenders than sellers. Naturally, that momentum stirs up talk about buying at the trade deadline. With the rotatio n finding its footing and the bats coming around, Bleacher Report’s Joel Reuter projected the