Tar Heels aim to build on defensive turnaround from 2015 Posted Apr 16, 2016 The Tar Heels had several young players getting key reps during the spring, including January enrollees Jonathan Smith at linebacker, and defensive backs Myles Wolfolk and Myles Dorn. That trio combined for 14 tackles during Saturday's spring game that put the offense and defense against each other in a scoring system based on points awarded on outcomes for each play. (Associated Press)