Change is coming to the St. Louis Cardinals, according to president of baseball operations John Mozeliak, a sign the underperforming team might deal veterans for prospects ahead of the Aug. 1 trade deadline.

St. Louis started Monday last in the National League Central at 40-53, on track for its first losing record since 2007.

"Usually when you're having a year like this, it's more than one thing that went wrong," Mozeliak said before a game against the Miami Marlins. "I feel like where this club's at right now, we just know it's not working intact. We do know we have to make some changes.