Casella Waste Systems (CWST -4.5%) slips after missing on its FQ2 results yesterday, and saying that it's reshuffling its management ranks. Net losses widened on debt-related losses, as earnings were negatively impacted by difficult economic conditions. Recycling commodity prices, landfill volumes at its Western New York landfills and its roll-off collection line-of-business all contributed to underperformance. The company lowers its FY13 sales outlook from $475M - 485M to $468M - 478M. Street estimates were at $475M.