A clear and cold late December afternoon in Baltimore's Memorial Stadium.  The sun struggled all day to bring the temperature above the freezing mark, and by game time the barometer rests around forty -- a fine football day.  The bundled crowds assemble in the face of a light southerly breeze as Johnny Unitas, black high-topped cleats and buzz cut in place, warms up along the sidelines.  Baltimore is in a fight for playoff positioning, trailing Miami by half a game in t...