Klein called a staff meeting Wednesday morning to make his announcement and thanked his team for its hard work during the past 22 months while he was director.
Klein has won praise -- and criticism -- for innovative efforts to improve pedestrian safety, make the city streets safer for bicyclists, modernize parking meters, and improve bus routes to help the city contend with traffic issues. He also was a major public presence during the February snows.
Gray is expected to name a new city administrator this afternoon -- the key person who will run the day-to-day affairs of the city for him.
Gray also will name his chief of staff. It's unclear when Gray will name a new DDOT director or other positions in his cabinet. Gray assumes office January 2.
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