On November 17, 2014, the St. Louis Cardinals acquired Jason Heyward from the Atlanta Braves. It was the biggest name acquired by the Cardinals in the John Mozeliak era and it still is—Heyward went from much-hyped prospect to bona fide MLB star, ranking 11th in baseball in Wins Above Replacement (the Baseball Reference version) among position players from 2010, his rookie season, through 2014, his final season in Atlanta.
And for the price of Shelby Miller, not far removed from being a top pitching prospect but coming off a disappointing sophomore season at the MLB level, and Tyrell Jenkins, a secondary prospect who struck out fewer than five batters per nine innings at high-A, the Cardinals acquired Heyward and Jordan Walden, who never really materialized in St.