CHICAGO – A top aide to former longtime Chicago Mayor Richard Daley will take over later this month as Mayor Rahm Emanuel's new chief of staff.

Lisa Schrader, 41, replaces Theresa Mintle, who resigned last week after two years on the job. Schrader, who was most recently Emanuel's chief operating officer, will start March 15.

"I would like to think I've been helpful to him in the last 21 months, (but) I have learned an enormous amount from him. His vision, his determination, his skills are incredible," she told the Chicago Sun-Times for a story published Sunday.