From this morning's Indianapolis Star Business News E-mail: ATA Airlines names new CEO ATA Airlines named Subodh Karnik president and chief executive effective Jan. 1, replacing John G. Denison who will remain chairman. Denison, a retired Southwest Airlines executive, joined ATA in January 2005. Karnik, ATA chief operating officer, was hired in May 2005, coming from Delta Air Lines, where he was senior vice president of marketing planning. - Blaine