Norfolk County Retirement System has appointed Kathleen Becchetti as the system’s new executive director, Pensions & Investments reports. She will be replacing John Keenan, who won the election in November as a Massachusetts state senator. Previously, Becchetti was an executive director at the $3.3 billion State-Boston Retirement System, which she left at the end of February 2011. The Boston Retirement Board will decide on her replacement.

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