NittanyNation mailbag: Replacing McGloin 
January, 18, 2013
Jan 18
1:00
PM ET
By
Josh Moyer | ESPN.com
Welcome to NittanyNation's bi-weekly mailbag! We asked you to tweet your questions this week, and we've selected three to answer in-depth -- starting with the question we received most.
Scott Reading (@7reading7) writes: What will be the biggest challenge for O'Brien this upcoming season? I feel it'll be the secondary.
Josh Moyer: Well, the secondary certainly isn't a bad choice. But with both safeties returning and another year under Adrian Amos' belt, I think we can all agree they should be improved overall from last season. But it's definitely far from a strength.
Scott Reading (@7reading7) writes: What will be the biggest challenge for O'Brien this upcoming season? I feel it'll be the secondary.
Josh Moyer: Well, the secondary certainly isn't a bad choice. But with both safeties returning and another year under Adrian Amos' belt, I think we can all agree they should be improved overall from last season. But it's definitely far from a strength.
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ABOUT NITTANY NATION
Josh Moyer
Josh Moyer joined ESPN.com in 2012 after covering Penn State football for recruiting website Nittany Network and City Hall for The Citizens' Voice in Wilkes-Barre, Pa. Moyer graduated from Penn State and earned his graduate degree at Columbia. Email him at espnjoshmoyer@gmail.com.