CB Chris Cook showed promise before missing most of the season due to legal matters, and veteran CB Antoine Winfield is aging and returning from a broken collarbone. That duo and CB Asher Allen will be challenged by free-agent signees CB Chris Car (Ravens) and CB Zachary Brown (Bears), third-round draft pick CB Josh Robinson (Central Florida) and fifth-rounder Robert Blanton (Notre Dame). The Vikings corners will definitely have a new look in 2012.