Ever since coach Mike McCarthy hired 3-4 expert Dom Capers as the team's new defensive coordinator on Jan. 18, the club has been emphasizing that the change in defensive philosophy isn't as overwhelming as one might assume. But based on what Pittsburgh Steelers director of football operations Kevin Colbert and new Detroit Lions coach Jim Schwartz said Thursday, it sure sounds like the change is going to be harder than the Packers have been willing to admit.