The board of Sammons Enterprises Inc. has named Michael Masterson chief executive officer.

Masterson has been chairman of Sammons Financial Group, Chicago, a financial services division of Sammons Enterprises, Dallas, and he will continue to hold that title, according to Sammons Enterprises.

Robert Korba has been and continues to be the chairman of Sammons Enterprises.

Masterson has a bachelor’s degree from the University of Minnesota. He holds the Chartered Life Underwriter, Chartered Financial Consultant and LIMRA Leadership Institute Fellow professional designations. He also has served on the boards of LIMRA International, Windsor, Conn., and the American Council of Life Insurers, Washington.

In other personnel news:

- The retirement services division of Massachusetts Mutual Life Insurance Company, Springfield, Mass., has hired William Erlandson to be a managing director in the company’s Taft-Hartley operations.

Erlandson previously was a director of Taft-Hartley relationship management at Putnam Investments, Boston.

- The National Association of Independent Life Brokerage Agencies, Fairfax, Va., has hired Mark Valentini to be manager of government affairs.

Valentini previously was assistant director of legislative affairs at the Association for Advanced Life Underwriting, Falls Church, Va. He also has been deputy finance director for Senate Majority Leader Harry Reid.

Valentini has a bachelor’s degree in government and a master’s degree in public policy from George Mason University.

- AlphaStaff Group Inc., Fort Lauderdale, Fla., a professional employer organization, has named David Dreyer chief financial officer.

Dreyer previously was chief financial officer at AMN Healthcare Services Inc., San Diego.

Dreyer has a bachelor’s degree from Golden Gate University