Interesting red zone stats (this guy writes for the NYTimes blog)
http://www.nflstatanalysis.net/2010/05/red-zone-stats-part-1-more-analysis-to.htmlhttp://www.nflstatanalysis.net/2010/05/red-zone-stats-part-1-more-analysis-to.html
http://www.nflstatanalysis.net/2010/05/red-zone-stats-part-2-measuring.html
http://www.nflstatanalysis.net/2010/05/red-zone-stats-part-1-more-analysis-to.htmlhttp://www.nflstatanalysis.net/2010/05/red-zone-stats-part-1-more-analysis-to.html
http://www.nflstatanalysis.net/2010/05/red-zone-stats-part-2-measuring.html