UNC just missed out on a chance at a hail mary because of the new 10-second runoff rule for an offensive penalty. If you remember, that rule was instituted after UNC took advantage of this craziness:
[ame="http://www.youtube.com/watch?v=-NP8y8OaGNo"]Music City Bowl Ending - Tennessee vs. North Carolina - 12/30/2010 - YouTube[/ame]