The Saints looked "lost" last year and the previous few years because they lacked a defense with a pulse, boy wonder.
Out of curiosity I looked this up and the previous 5 years the Saints offense has averaged #2 in the league. They were #2 this year. On the defensive side they averaged 25th. (actually outside the crazy anomaly of 2013 where they finished 4th their average was 30th) This year was 17th.