Delta Air Lines Inc., the $15 billion Atlanta-based airline, rehired Edward Bastian as its CFO and executive vice president. He replaces Michael Palumbo, who left to pursue other interests. Bastian, 48, had been CFO and senior vice president of Acuity Brands Inc. since June. Before leaving Delta to join Acuity, Bastian was Delta's senior vice president of finance and controller. He joined the airline in 1998 as vice president of finance, after serving as vice president of business process re-engineering for Frito Lay Inc., a subsidiary of Pepsico Inc. Delta also rehired Paul Jacobson as treasurer and vice president. He replaces Todd Helvie, who left the company. Jacobson, 33, had been assistant treasurer at Mirant Corp. since March, after having served as Delta's assistant treasurer.

Consolidated Edison Inc. (Con Ed), a $9.7 billion utility based in New York City, named Robert Hoglund CFO. Joan Freilich, who had been CFO since 1996, was named vice chairman. Hoglund, 43, joined Con Ed in 2004 as senior vice president of finance. Earlier, he was a managing director at Citigroup Global Markets Holdings Inc. and worked at Merrill Lynch & Co. and Morgan Stanley.

Viacom Inc., a $22.5 billion media company based in New York City, named Joseph Ianniello treasurer and senior vice president. He succeeds Robert Freedline, who left the company. Ianniello, 37, had been Viacom's vice president of corporate development since 2000. Before joining the company, he served as director of financial planning and held positions in the investor relations and internal audit departments of CBS Broadcasting Inc. Earlier, Ianniello worked at KPMG LLP for seven years.