The Nittany Lions are an imposing group. They returned their top five scorers from last season and have scored 4.6 goals a game, which ranks second in the nation. Last year’s team had similar offensive success but was tarnished by one of the nation’s worst defenses. A lot has changed since then, though. Penn State is ranked 19th in goals against, allowing 2.4 a night — a substantial difference from 3.56 last season. And with that improvement, Michigan is slated for a challenging weekend. Fortunately for the Wolverines, their defensive unit has been one of the lone bright spots throughout this season. They’ll need to build off that to make the most out of the series.