Join the football conversation on FootballPros.comNFL-2011 is upon us, and there’s always something interesting things to keep an eye that are worth revisiting at the end of the season. Here’s a look at some recent trends and historical notes that could make for great conversation.--We’ve not only not seen a team repeat as Super Bowl champions since the Patriots in 2003 and ’04, they were also the last club to make consecutive appearances in the Big Game. The 7-year gap between a team making back-to back Super Bowl appearances is the longest in the history of the game regardless if the Packers reach Indianapolis. More importantly, can Green Bay defend its NFL title (for what its’ worth, the Packers make their Super Bowl appearances in twos; I & II and XXXI & XXXII)...‘11