I like the idea.. make it an experiment. LEARN from it.
Make a virtual campus somewhere... players from all over the country.. all taking online courses.. have tutors there.. like a village.. great testing and medical care.. do the whole season in 90 days.
Of course.. that's a lot of teams in D1... too many for ONE site. Forget conferences. Everyone in D1 can opt-in to join the bubble. Use coaches ranks of teams in a conference and experts opinion son conferences to craft a fair schedule that distributes difficulty based on fair assumptions.
Lets do some math.. lets figure one court could handle 6 games a day.. 2 per morning, afternoon, evening.. that covers 12 teams for one day.. 2 days rest then another 6 games.. etc.
Over 3 days, that one court handles 18 games between 36 different teams.
Now while a court could be used for the 4th day, at some point teams who play on different days of the week will have to face each other and someone will be on shorter rest.. so let's call it 4 days for 36 different teams to play a game.
They can play 30 games in 90+ to at most 120 days. 4 months. Basically, a semester.
Then you take the top 72 for the single-elimination tourney.
There are 350 D1 schools.. not everyone would pay for joining this bubble experiment but let's say they all do.
175 games shows everyone play.
6 games a day for 1 court that would mean 30 courts needed. But spread across 3 days.. that is 10 courts needed.
So a facility with 10 courts, each hosting 6 games a day, could handle it. With housing for 350 teams and staff and support staff.. tutors.. media to broadcast every game... local and national reporters to cover it. Lets say that's 30 people per team plus maybe 1000 more.
Thats 11,500 people. Let's call it 12,000 I'm sure players would share rooms but lets call it 12,000 hotel rooms needed.
I think we found the sticking point.
I think you'd need a military base sized setup with barracks for teams. Big hangars where you build courts.. and a lot of private housing... and excellent cell and broadband.