"I remain passionate about newspapers in general and the Daily Mail in particular," Friend said. "I've enjoyed a career more challenging and rewarding than I ever dreamed possible, but it's time for me to find a lower-key pursuit.
"Brad will be a terrific leader of a terrific staff. In fact, he already is. I have relied heavily on his intelligence, judgment and adaptability as we have guided the newspaper through an extraordinary period of change."
Maurice, a journalism graduate of West Virginia University, started at the Daily Mail as a business reporter in 1978 and served as business editor from January 1980 until August 1984.
She became an editorial writer in 1985 and editorial page editor the following year.
"With her analytical and writing skills and her passionate belief in the Daily Mail's conservative philosophy, Hanna will be difficult to replace," Friend said.
"However, we are determined to choose someone who will maintain that standard of excellence."
The changes were announced to the Daily Mail staff on Monday by Jim Brady, editor-in-chief for Digital First Media, which oversees media platforms across the country, including the Daily Mail and its website, dailymail.com.
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