Since arriving on campus at Penn State last year, the debate has been notable regarding the future position of Nittany Lions’ defender DaKaari Nelson. The now-redshirt freshman played safety his first year in Happy Valley, but his 6-foot-3, 217-pound frame has been earmarked for some to grown into a linebacker. BWI has confirmed that Nelson has made the switch in camp. While he started preseason practice with the safeties, Nelson is now working at linebacker. He appeared with Tom Allen’s position group at the team’s annual photo day on Saturday. Program sources confirmed the recent change. A p…