Who else besides Pitt isn't in it this year? Is it based on previous season's record?
I think Pitt was left out this year because the ACC doesn't make the same team sit out 2 years in a row, thus BC had to play this year, so Pitt was the next optionJust Pitt was left out. Technically, the team with the worst prior year RPI is left out, which would have been BC but I'd imagine that Pitt, very smartly, opted to sit out this year in return for playing in it next year even though we will have the worst RPI this year.
I think Pitt was left out this year because the ACC doesn't make the same team sit out 2 years in a row, thus BC had to play this year, so Pitt was the next option