So if the 19 pronostigators are correct and there are fewer fans let in, what will be the formula/method for making the decisions on who gets in and where they get to sit?
They'll probably sell only reserved seats, no gen ad the day of the game, and do the social distancing through the sale of tickets. Just limit the number of tickets sold for each game (no problem for the MACtion games) and assign the seats with distancing in mind. Same would apply to the student section -- they have to pick up tickets in advance. At Peden the band might sit in the north end zone seats on both sides and wear masks between numbers.
As for the number of games, I expect some of the OOC games may be cancelled or filled with substitute teams because of reopening issues. If the expected second wave hits in November some conference and bowl games would be cancelled as well. I think most teams will play fewer than their full 12-game schedule, so bowl eligibility will likely be based on .500 or better records rather than the six or seven win requirement. Conference affiliations will likely be ignored for bowl games.