Go ahead and take it I honestly wouldn't be offended.
Division 1
Duke
North Carolina
Virginia
Division 2
NC State
Virginia Tech
Wake Forest
Crossovers: UNC-NCSU, Duke-WF, UVA-VPI
Now zipper up the remaining 8 teams: Clemson-Georgia Tech, Boston College-Syracuse, Florida State-Miami, Pittsburgh-Louisville. These matchups would be cross-overs every year.
Year 1
Division 1
Duke
UNC
UVA
Clemson
BC
FSU
Pitt
Division 2
NCSU
VPI
WF
GT
SU
Miami
UL
Each team would play 1 more team from the division on rotation.
Year 2
Division 1
Duke
UNC
UVA
Clemson
BC
Miami
UL
Division 2
NCSU
VPI
WF
GT
SU
FSU
Pitt
1 TBA from the other division again
Year 3
Division 1
Duke
UNC
UVA
GT
SU
FSU
Pitt
Division 2
NCSU
VPI
WF
Clemson
BC
Miami
UL
1 TBA for every school
Year 4
Division 1
Duke
UNC
UVA
GT
SU
Miami
UL
Division 2
NCSU
VPI
WF
Clemson
BC
FSU
Pitt
TBA
I mean this can't be fixed whatever the ACC wanted to do it but the premise would be the same as the 3+5+5 pretty much by having 3 team foundations that allowed the other 3 teams to be rotated and protecting the most important game for each team.
Every team would see each other a lot more frequently.