US grocery chain Kroger has announced that David B. Dillon, president and chief operating officer, will be elected chief executive officer. Dillon will succeed Joseph A. Pichler, who will remain chairman of the board. Dillon has been president and a member of the Kroger board of directors since 1995, and chief operating officer for seven years. From 1986 to 1995, he was responsible for the supermarket, convenience store, and manufacturing operations of the former Dillon Cos., which merged with Kroger in 1983.