For Arrington to stay on the field more, he will need to improve his run defense. He will learn how to set the edge and shed blocks to make tackles. He will also need to maintain gap assignments. If Arrington can defend the run, it will increase his snap count. Penn State has depth on the defensive line, and Arrington will see time in pass-rush situations. When he steps on the field, he will need to show up and show out.