AUCTION BROADCASTING CO. -- David Newcomer to CFO.
He had been CFO of the radio division of Emmis Communications.
Auction Broadcasting, of Indianapolis, has 10 auto auctions.
DELOITTE LLP -- Craig Giffi, 52, to head of the U.S. automotive practice. Giffi succeeds Michelle Collins, who leads Deloitte's audit practice in Michigan.
He continues in his roles as vice chairman and national industry leader for consumer and industrial products and chairman of the global manufacturing industry practice of Deloitte Touche Tohmatsu.
Deloitte, of New York, provides audit, tax, consulting and financial advisory services.
NAC -- Christina Schrank to vice president of marketing.
She had been director of operations.
NAC, of Westerville, Ohio, provides vehicle service contracts, products and services.
Its former name was National Auto Care.