Former Cardinals catcher Mike Matheny will be introduced as Tony La Russa's successor at a news conference on Monday. "I think he's going to be a great leader," Jim Edmonds, a teammate of Matheny's in St. Louis, said Sunday night. "If he goes out there and does what he's capable of doing and they put the players around him, he could be the manager for the next 20 years." Matheny, 40, played for St. Louis from 2000-04 and won three of his four Gold Gloves. He became a team leader playing for La Russa, who retired after leading the team to his second World Series title in 16 seasons. He was one of six men the Cardinals interviewed to replace La Russa.