    Sentence 1: What year did the the Saints  hit a 13-O record?    Sentence 2: Carolina started the season  14-0, not only setting franchise records for  the best start and the longest single-  season winning streak, but also posting the  best start to a season by an NFC team in  NFL history, breaking the 13-O record  previously shared with the 2009 New  Orleans Saints and the 2011 Green Bay  Packers