Penn State got a great boost in the return of a number of players who could have left after the 2021 season. Some of them, like P.J. Mustipher, knew that it was in their best interests to return for one more year. Others, like Ji’ayir Brown, chose to come back for one las go at it. There are plenty of reasons to be excited about the Nittany Lions defense in 2022, and Jared went over three of his biggest last week. Now, let’s take a look at the other side of that coin, the three reasons that may keep people up at night as the season approaches.