ST. LOUIS — Stephen Van Tassel has resigned as corporate vice-president and president of the Post Foods division of Ralcorp Holdings, Inc. in order to pursue other opportunities. David P. Skarie, co-chief executive officer and president of Ralcorp Holdings, will take over as president of Post Foods on an interim basis.

Mr. Van Tassel had been corporate vice-president and president of Post Foods since October 2008. He joined Ralcorp in August 2008 in connection with Ralcorp acquiring Post Foods from Kraft Foods Inc. Mr. Van Tassel previously spent 10 years at Kraft Foods Inc. While at Kraft he was vice-president of marketing for North America Post Cereal, vice-president of global biscuits, and vice-president of Latin America Snacks. Prior to joining Kraft, he held marketing roles at International Home Foods, Inc., American Home Products Corp., ConAgra Foods, Inc., and General Mills, Inc.