The Giants are studying a number of defenses in order to keep opposing offenses on their toes this coming season. "Tom Coughlin does a great job of insisting the coaches do what we call 'research projects,' " Bill Sheridan said. "We study other defenses in the league and, inevitably, you'll come up with a bunch of other ideas. You can't incorporate them all. There's not enough snaps in a game to run them all. But you do get ideas."