Clemson needs to beat UL and Wake Forest. NC State needs to lose twice in their 4 remaining ACC games. Wake Forest needs to lose twice in their 3 remaining ACC games (UNC is non-con).
In this scenario Clemson finishes 6-2 with losses to NCSU and Pitt Wake finishes 6-2 with losses to Clemson and 1+ of NCSU/BC NCSU finishes 5-3 with losses to Miami and 2+ of FSU/Wake/Cuse/UNC