I think Mack deserves an A. Wins/losses isn't necessarily the most important metric for evaluating the first year under a new coach. Recruiting has done a complete turn around, fan attendance and enthusiasm has done a complete turn around, discipline on and off the field has done a complete turn around, and the effort on the field has done a complete turn around.
Last year Carolina did not have a competitive football program. This year we were one play away from beating the number one team in the country. Went from 2-10 to 6-6 and lost more close games than just about anyone in the country in the process. And managed that turnaround with a ton of injuries at some extremely important positions.
I don't think there's a single team in the Coastal that I don't expect us to beat next year. From my perspective, Mack looks like a miracle worker already.