The Ravens are not experiencing anything new. Whenever a coach like John Harbaugh replaces a long-time coach like Brian Billick, the team always performs better in the first season because they want to prove it was the coach's fault, not theirs. Then in the second season, everything returns close to normal. If you don't think so, just check out where Bill Parcells has gone and left. Or look at Barry Switzer when he replaced Jimmy Johnson.