The Cobb Board of Commissioners appointed Rob Hosack, former head of community development, interim county manager Tuesday.

Hosack replaces David Hankerson, who is retiring after more than 24 years in the position.

In a letter to employees last week, Hankerson said he was retiring to spend more time with his family and “enjoy life in general.”

Hankerson’s contract was renewed earlier this year, but Chairman Mike Boyce had said he would be seeking a replacement, citing voters’ desire for change.

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Former Georgia Lt. Gov. Geoff Duncan holds up a coaster he received from his father that says "Doing the right thing will never be the wrong thing. Stay strong," at the Democratic National Convention in Chicago. Duncan, a former Republican, is now running for governor in Georgia as a Democrat. (Arvin Temkar/AJC 2024)

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Fulton DA Fani Willis (center) with Nathan J. Wade (right), the special prosecutor she hired to manage the Trump case and had a romantic relationship with, at a news conference announcing charges against President-elect Donald Trump and others in Atlanta, Aug. 14, 2023. Georgia’s Supreme Court on Tuesday, Sept. 16, 2025, upheld an appeals court's decision to disqualify Willis from the election interference case against Trump and his allies. (Kenny Holston/New York Times)

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