ACC might not be as easy this season as past years. I don't ever remember a conference having five teams with units with double digit returning starters. GT, FSU, and VPI return 10 on defense. UNC and NCSU return 10 on offense including the QBs.
SEC, for comparison has one. Vandy returns all 11 on defense. Problem there is they played for Vandy last year. And ranked 95th in Scoring Defense allowing 31.8 PPG.
Edit: ACC also has two 9s and six 8s. GT returns 9 including the QB on offense to go along with their 10 on defense. Louisville returns 8 on both sides of the ball. FWIW, Clemson returns 6* on offense and 5 on defense. Big asterisk on offense.