With a sizable roster turnover one might have assumed going into the season that Penn State’s trend of improving its win total during the program’s first three seasons might come to an end. On the other hand, maybe not. The Nittany Lions, with a roster that features 10 freshmen and eight sophomores, have gotten off to an impressive 5-1-1 record this season and, after starting the season unranked, have climbed to No. 14 in the…