CHICAGO—Harried, flinch-prone Bears head coach Lovie Smith said Thursday his biggest concern going into the 2011-2012 NFL season would be the constant presence of the cruel, derisive voices in his headset that keep calling him an idiot. "I had hoped the voices would go away after last year, but they've been there all preseason," a visibly shaken Smith told reporters, saying the voices could be frustrated, angry, exasperated, or "even just sad, sometimes," and confirming he hears them whenever his headset is on. "Our first practice of the year, the first thing I heard when I put my headphones on was 'Welcome back, idiot.' I hadn't even done anything yet."