The $5.7 billion, broker of exchange-listed futures and options,MF Global Ltd., based in New York, has named chief administrativeofficer, Ira Polk, as interim CFO. Polk, 60,replaces Amy Butte, who left the company to pursueother opportunities. Polk, has spent 22 years with MF Global,formerly Man Financial, including seven years as CFO. Before2coming to Man Financial in 1985, he served as vice president offinance and administration at Rudolf Wolff & Co. For theprevious three years, he assumed the role of vice president offinance at Johnson Matthey & Wallace Inc. From 1973 to 1982,Polk was a principal q5 the accounting firm of Arthur Young &Co.

Blue Cross and Blue Shield of Minnesota named MichaelMorrow CFO of the $1.4 billion health plan, the largest inMinnesota. The health insurance carrier is based in Eagan, Minn.Morrow, 50, succeeds Timothy Peterson, whoretired. Morrow's career with the company spans over two decades.He has held various positions with the health plan provider since1985, including vice president of financial planning, vicepresident of network operations and director of providercontracting and payment.

The $743 million provider of automation solutions and integratedsubsystems, Brooks Automation Inc., with headquarters inChelmsford, Mass., named senior vice president and corporatecontroller, Richard Small, interim CFO. Small, 50,succeeds Robert Woodbury, who has resigned fromhis post. Since joining Brooks in September 2003, Small has servedas corporate controller and most recently as senior vice presidentand principal accounting officer. Before joining the company, hespent six years with Global Knowledge Network, where he assumed therole of corporate controller for five years. Prior to 1997, Smallserved as operations controller for Helix Technology Corp. andworked in corporate accounting and financial management at BoltBeranek and Newman and in program accounting and administration atLockheed Sanders.

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