I've fielded a couple questions on the possibility that the Green Bay Packers could go 16-0. While I expect them to win every game they play, I don't care if they go unbeaten either. Going 16-0 doesn't win them anything in the playoffs.
Both the Saints and Colts made it to 13-0 in 2009 before either team lost. It was just the third time that two teams had ever started the season 10-0, according to Bloomberg, and the closest we came to watching two 10-0 teams face each other was back in 1990, when the 10-1 49ers hosted the 10-1 Giants. The 49ers won that game by a score of 7-3. Ironically, if the 2011 Packers and Lions each make it 10-0, the last time those two teams played was back on December 12, 2010 when the host Lions won by a score of 7-3.
Here's more on the Lions from Matt Brooks at the Washington Post.