CHARLOTTE — There was no need for a fiery halftime speech to get North Carolina going this time. A heated exchange late in the first half seemed to light a fire in the Tar Heels. From there, UNC (9–4) went on a 21–6 run to storm away from Michigan (7–4) and the Tar Heels held on for an 80–76 victory Wednesday night at the Jumpman Invitational before 19,236 mostly Carolina fans to take a four-game win streak into the Christmas break.