The national perception is that the Ravens are unlikely to repeat as Super Bowl champs. That gives the Ravens reason to feel disrespected, a mantra they may use for motivation. Complacency is a danger for defending champions. But after undergoing so much change, the Ravens may have an easier time psychologically putting last season’s success behind them. Las Vegas bookmakers don’t even rate the Ravens among next season’s top five favorites. Losing so many key players from last season like Anquan Boldin, Dannell Ellerbe, Paul Kruger, Ray Lewis, and Ed Reed has robbed the Ravens of their national swagger. You don’t hear much talk about a potential Ravens dynasty. Instead, the offseason storylines have centered on the Ravens being decimated in free agency. Defensive lineman Chris Canty won a Super Bowl with the Giants, and he believes the Ravens have the talent to repeat. He signed with the Ravens during free agency because he saw a team with championship potential that was still hungry. "It was the best opportunity to win a championship,’’ Canty said Friday on NBC’s Pro Football Talk. Joe Flacco took that next step in the playoffs. They have a lot of those core pieces still there. "We’re having to put our football team back together. There are a lot of guys that left, there are a lot of guys that came in free agency, additions in the draft. We’re really starting over from scratch with a new group of guys, particularly on the defensive side of the ball. I think that that bodes well for us. The turnover with the Baltimore Ravens will help us come together as a team.’’ It is difficult to win consecutive Super Bowls under any circumstances. Eight seasons have passed since the Patriots won back-to-back titles. The odds are against the Ravens, but that will be nothing new for them. They were not a trendy pick when the 2012 playoffs began, and they were underdogs in their final three postseason games.