United Airlines, the $16.3 billion Chicago-based carrier, named John Gebo vice president of financial planning and analysis. He succeeds Rohit Philip, who was appointed to the new position of senior vice president of corporate strategy and business development. Gebo most recently served as managing director of investor relations. Since joining United in 2000, he has also worked in financial planning, business management, operating and capital budgets. Tyler Reddien will replace Gebo as managing director of investor relations.

American International Group, the beleaguered insurer with $11.1 billion of 2008 revenue, named Peter Hancock to the new position of executive vice president of finance, risk and investments. CFO Peter Herzog will report to Hancock, who is joining AIG from KeyBank, where he was vice chairman. Hancock, 51, spent 20 years at J.P. Morgan, where he established the global derivatives group and later served as CFO and chief risk officer. After leaving J.P. Morgan, Hancock started an advisory firm, Integrated Finance Ltd.

Interpublic Group, a $6.9 billion advertising company, hired Julie Connors as chief risk officer and senior vice president of audit. She succeeds Tom Dowling, the company's chief risk officer for the last decade, who is leaving in February. Connors, 38, is joining New York-based IPG from Deloitte & Touche, where she was a partner and one of the leaders of the accounting firm's enterprise risk and internal audit practices. Prior to joining Deloitte, Connors was an internal auditor at Macy's.

Great Atlantic and Pacific Tea Co., the $9.5 billion supermarket chain better known as A&P, has named Krystyna Lack vice president of treasury services. She will report to Brenda Galgano, the company's CFO since 2005, who is adding the title of treasurer following the year-end departure of William Moss. Lack, 39, most recently served as the company's assistant treasurer. In her 12 years with the Montvale, N.J.-based retailer, Lack has also been involved in financing transactions and investor relations.

Bemis, a $3.8 billion packaging company in Neenah, Wis., said Scott Ullem will become CFO and vice president in May. He will replace Gene Wulf, who is stepping down as CFO to become the company's executive vice president. Ullem, 43, joined Bemis as vice president of finance in 2008. He had been an investment banker at Bank of America from 2005 to 2008 and earlier spent 14 years in investment banking at Goldman Sachs.

Willis Group, the $3.2 billion insurance brokerage, has appointed Steven Wood interim CFO. He succeeds Patrick Regan, who is leaving to become CFO of insurer Aviva. Wood, 46, is the company's global group financial controller. He joined London-based Willis in 2006 from GE Life, a unit of General Electric, where he was divisional chief operating officer for annuities. Earlier in his career, Wood worked in banking and public accounting.

Gymboree, a $1 billion chain of children's apparel stores, promoted Jeffrey Harris to CFO. He succeeds Blair Lambert, who will continue to serve as COO until he retires later this year. Harris, 46, joined San Francisco-based Gymboree as vice president of finance in 2005. Earlier, he was vice president of finance at CBS MarketWatch, a financial news organization, corporate controller at Lucasfilm and controller for a division of Walt Disney. He also worked in finance and audit at Tribune Co.

Coinstar, a $911.9 million provider of self-service coin counting and DVD rental machines, named J. Scott Di Valerio CFO effective March 2. He will replace interim CFO James Blanda, a partner at Tatum. Di Valerio, 47, most recently was president of the Americas for Lenovo. Earlier, he worked at Microsoft, where he was chief accounting officer and corporate vice president of finance and administration. He also served in controller positions at Walt Disney and as CFO of Mindwave Software.