ACC Post-Week 4 Power Rankings Posted Sep 24, 2012 8. North Carolina (2-2, 0-1 ACC): After back-to-back close losses, the Tar Heels returned to the win column with a solid 27-6 victory over East Carolina. The offense got a huge boost with the return of running back Giovani Bernard. The sophomore rushed for 50 yards and one touchdown and added six receptions for 52 yards and one score. North Carolina’s defense allowed only 233 yards to the Pirates. (Athlon Sports)