The defending Super Bowl champion Baltimore Ravens continued bolstering their defense with today's hiring of former New York Giants Super Bowl-winning defensive coordinator Steve Spagnuolo as senior defensive assistant. Spagnuolo, 53, was the architect of the Super Bowl XLII defense that upset the previously unbeaten Tom Brady-led New England Patriots, who owned the highest scoring attack in league history. "Steve had a number of opportunities in the league right now, and we're excited he picked the Ravens," Ravens coach John Harbaugh said. "He comes to a staff that we believe is very strong, and he makes us even better. "His wealth of NFL coaching experience speaks for itself, and he'll help us across the board. We think he can help with every position on the defense, and we'll take full advantage of his knowledge and excellent teaching abilities. The Ravens got better today with the addition of an outstanding coach and person like Steve." The Ravens have rallied from the retirement of Ray Lewis and the free-agent defections of Ed Reed, Dannell Ellerbe and Paul Kruger to sign pass-rushing outside linebacker Elvis Dumervil, free-agent safety Michael Huff, former Giants defensive lineman Chris Canty and spent their first four draft picks on infusing speedy defensive playmakers such as safety Matt Elam and inside linebacker Arthur Brown. Spagnuolo was recently fired by the New Orleans Saints because of the stated reason the team wanted to switch to a 3-4 defense, and Spagnuolo has long been a 4-3 guy.