All, my partner and I feel there is a dearth of quantitative analysis being applied to the Steelers. Thus, we've founded the site: http://www.steelcitystats.com.
I encourage you to check out our first article, entitled "Why did the Steelers Miss the 2013 Playoffs?"
We use basic statistical analysis and some intermediate methods to obtain which variables (e.g., passer rating) are important to predicting why teams have won or lost games. No data analysis can provide a 100% accurate conclusion, but I think you'll see that the data speaks for itself.
If you like it, please forward it to friends and family. If you don't like it, please let us know what we can do better.