5 storylines: PSU vs. Navy 

September, 13, 2012
9/13/12
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Every week, NittanyNation takes a look at five storylines that stand out: What should fans keep an eye on? What's the bigger picture? What might be on display Saturday?

Here are NittanyNation's Week 3 storylines:

1. Another week, another running back: With injuries to both Bill Belton and Derek Day, Penn State could be forced to use its third-string tailback in Zach Zwinak. Penn State struggled with its backup tailback last week and averaged just 2.9 yards a carry. With possibly using an emergency tailback to go along with the 100th ranked rushing offense, just how much further can this run game fall?
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