Staples, Inc. (SPLS) posted lower-than-expected first-quarter 2011 results. The quarterly earnings of $0.28 per share missed the Zacks Consensus Estimate of $0.32 and remained flat compared with the prior-year quarter. Given the underperformance, the company took a cautious stance and trimmed its fiscal 2011 earnings guidance. The company now expects earnings between $1.35 and $1.45 [...] (SPLS) Staples Incorporated – Bear of the Day