I think ND will continue to be an OOC opponent for ACC teams.
My take on three protected opponents, by school:
BC: Pitt, Syracuse, Va Tech
Clemson: Florida State, Georgia Tech, Miami
Duke: North Carolina, NC State, Wake
Florida State: Clemson, Georgia Tech, Miami
Georgia Tech: Clemson, Florida State, Miami
Louisville: Pitt, Syracuse, Virginia
Miami: Clemson, Florida State, Georgia Tech
North Carolina: Duke, NC State, Virginia
NC State: Duke, North Carolina, Wake
Pitt: BC, Louisville, Syracuse
Syracuse: BC, Louisville, Pitt
Virginia: Louisville, North Carolina, Va Tech
Va Tech: BC, Virginia, Wake
Wake: Duke, NC State, Va Tech
Sorting out the 5 and 5 for each school is admittedly a bit tougher.