As the St. Louis Cardinals, fourth-place sellers, look to make some more deals by Thursday’s trade deadline, what looms at Busch Stadium is the trade never made. Nolan Arenado is still a Cardinal. The future Hall of Fame third baseman, who the Cards looked to move in the offseason as part of the club’s “reset,” is now a below-league-average ballplayer. Last year was a rough go of it, too — Nolan finished with 16 home runs and a .719 on-base plus slugging percentage (OPS).