UNC's title defense, Zags' follow-up top 2017-18 story lines

GLENDALE, Ariz. (AP) -- The 2016-17 season is over, with North Carolina holding off Gonzaga to win the national championship for the program's sixth NCAA title. The win for the Tar Heels wrapped up the season's biggest story line: How North Carolina would bounce back from a buzzer-beating loss in last year's finale. Let's take an early look at some of the threads to watch leading into next season.