Terry Angstadt was replaced as IndyCar's president of the commercial division and Brian Barnhart no longer will officiate races as part of changes to IndyCar's management team confirmed Wednesday.
Angstadt, who joined IndyCar in 2007, will be replaced by Marc Koretzky, a staff member since May. Koretzky has been IndyCar's director of corporate business development.
Angstadt led the signings of Izod and Apex Brazil and IndyCar's international expansion to Brazil and China. He will remain with the organization through the transition, an IndyCar spokesman said.
"I don't have one hard feeling in my body," Angstadt said. "It was a fantastic experience."
Koretzky came to IndyCar from the 360 Sports Academy, an Atlanta-based company that helps collegiate athletes become better leaders. Koretzky, a University of Georgia alumnus, is a former consultant to Charlotte Motor Speedway, the NFL and the NCAA men's and women's basketball Final Four.
Barnhart will remain IndyCar's president of racing operations, but a new layer of management will oversee races.
Barnhart's role as chief steward came under fire this past season with decisions to restart the race at New Hampshire Motor Speedway in August during wet conditions and to start the inaugural Baltimore Grand Prix with a safety truck on the track.
Barnhart, who is recovering from wrist surgery, was not available for comment. He joined IndyCar in 1997 as director of racing operations.
IndyCar has not named a new chief steward.