Kansas was really young last year yet they still won the B12 and one could argue that UNC has more heralded recruits than Kansas did last year.
UNC starts 2 seniors and 1 junior and 2 sophomores. That's not that young.
They also have 8 McDonald's All-Americans on scholarship, more than any other school in the country, plus a national championship winning coach.
They also have 6 players that contributed to last year's NC team.
They were ranked 4th in the preseason polls because of all that I listed above.
All of which makes 14-13 embarrassing. They have to win 2 of their final 4 conference games to avoid finishing with a losing record (no NIT). Their remaining games are FSU, at GT, Miami, at Duke. That's not an easy 2 win schedule.