The Giants' D-line plans

The hallmark of the New York Giants' recent strong teams has been dominant play from their defensive front, particularly at defensive end. From Michael Strahan to Osi Umenyiora to Justin Tuck to Jason Pierre-Paul, the Giants have been able to cultivate and maintain a bountiful garden of QB-hunting prowess. But as we look ahead to 2013, it's an area within which there are significant questions.