Women's fashion retailer Charlotte Russe Holding Inc on Thursday posted a sharp slide in third quarter net profit and named chief operating officer Mark Hoffman as its new chief executive officer. The California-based operator of nearly 300 stores reported earnings of $2.8 million, or 12 cents per share, compared to $5.6m, or 24 cents per share, in the year-ago period due to problems at its young-women's fashion segment.