Gregory Thornton has been named the chief executive officer of the 80,000-student Baltimore city school district.
He is currently the superintendent in Milwaukee and previously served as the second in command in Philadelphia and as a deputy superintendent in the Montgomery County, Md., school system.
Mr. Thornton replaces Andrés Alonso, who stepped down last year. A start date has not been announced.
A version of this article appeared in the February 26, 2014 edition of Education Week as Transition