The St. Louis Cardinals made several roster changes on Tuesday, releasing veteran shortstop and four-time Gold Glove winner Brandon Crawford, who struggled this season with a .169 batting average and was primarily a backup to rookie Masyn Winn. Infielder Matt Carpenter was reinstated from the injured list after recovering from a lower back strain, returning with a .255 average and three home runs in a utility role. Additionally, the Cardinals optioned outfielder Jordan Walker to Triple-A Memphis after a brief return to the majors and recalled first baseman Luken Baker, who has been performing well in the minors with 32 home runs. Cardinals President John Mozeliak emphasized the importance of young players like Walker getting regular playing time, which influenced the decision to send him back to Memphis. The Cardinals aim to improve their performance as they prepare for a home series against the Brewers.