The Giants re-signed backup quarterback David Carr on Monday, while cutting running back Reuben Droughns, cornerback Sam Madison and safety Sammy Knight. "We are excited about having David Carr back," coach Tom Coughlin said. "He did a very good job of preparing our defensive team this past year. David helped us prepare for the opponent's offensive scheme, whether it included a quarterback who was mobile or a drop- back game. The coaches were very pleased with what he did and I just hope it gets better."