I saw this on posted on the McAndrew board and thought it provided some good discussion of the issues PSU had last weekend. The article gives some analysis of the various break downs we've discussed over the past several days: o-line issues, Hack's indecisiveness and poor play calling / play design. Worth a read if you've got a few minutes.
http://www.profootballfocus.com/blog/2015/09/09/analysis-notebook-dont-blame-psus-o-line-for-hackenbergs-struggles/
http://www.profootballfocus.com/blog/2015/09/09/analysis-notebook-dont-blame-psus-o-line-for-hackenbergs-struggles/