Quinn shows many errors in preseason finale

What makes evaluating backup quarterbacks in preseason so challenging is that they rarely get to play with the first-team offense. But that wasn't the case Thursday for Brady Quinn, recently anointed the Chiefs' No. 2 quarterback. Quinn got the chance to play with the Chiefs' first string, albeit briefly, in the team's final preseason game at Green Bay. Quinn, however, hardly flourished, even though he also faced a Packers defense that featured just one starter rookie linebacker Nick Perry. Quinn completed just six of 12 passes for 83 yards. He also threw a red-zone interception to Packers defensive back Sam Shields, the type of pick that has haunted Quinn throughout his career. With the Chiefs' inside the Packers' 10, Quinn avoided the rush and stepped up in the pocket, then tried to rifle a pass into the back of the end zone for wideout Jamar Newsome. But Quinn's throw lacked the velocity necessary, and Shields rather easily stepped in front of Newsome to make the pick. Tha...