If the protocols remain the same as they are right now - that is, one positive 40 cycle PCR test means games get cancelled, then I'm going with 12 on the U/O, including post season.
PCR tests are very specific and very good at finding extremely small amounts of nucleic acid. Ran many when I was a gene jockey. If a person has even a tiny amount of SARS-CoV-2 RNA in his/her nose, then a 40 cycle PCR test is going to result in a + test result, and, given the specificity of nucleic acid sequences, it's fair to say that the target portion of the SARS-CoV-2 genome was in the subject's nose. But that doesn't mean the person was, at the time of testing, infected and capable of spreading the virus, which, ultimately, is all that matters to team sports. It just means there was nucleic acid from SARS-CoV-2 in his/her nose. Could be residual from a prior infection. Could be resultant from a viral load that is extremely low, meaning the person is effectively non-contagious. Could be environmentally inert RNA.
If a positive test on a 40 cycle PCR amplification remains the standard, and a positive test means that the team cannot play and some period of quarantine is required, then the season is all but shot. No bubble is going to work, if you put 68 teams, which means, what? 2,000 people in one place. This isn't the NBA.
The only way I can see any meaningful basketball being played would be if they change the protocol to something like this:
1. Test regularly - daily if needed.
2. Anybody testing negative can play, regardless of "tracing" contacts.
3. Anybody testing positive sits for whatever the medically accepted minimum quarantine is OR until they have 2 repeated negative tests, whichever occurs sooner. Could be the same day in the case of false positives.
The problem, of course, is that we are not being guided completely by science here - most people are extremely emotional about this issue (in all directions), and that is going to heavily impact what happens going forward.
Further, how can any of us justify college sports if we believe that young people will significantly spread the virus and that virus hospitalization rates are unacceptably high? It seems to me plain that, if California is correct, and there is a current need for a one month stay-at-home lockdown and restricted public interaction, then how on earth can we justify thousands of student athletes being face to face, maskless, transferring respiratory droplets to each other while heavily exerting themselves? Of course we can't. That's a non sequitur.
Could there be a vaccine that saves the season? Maybe. Would love to see it.
But even with a vaccine, there are still going to be Covid-19 associated deaths. Even with widespread availability of an influenza vaccine, about 40,000 people die every year in the U.S. from the flu.
How is the country going to manage SARS-CoV-2 after vaccine administration begins? If we can reduce Covid-19 associated deaths to 40,000 a year, do we then go back to sports? Or is 40,000 too many? And if we can get that number to 20,000 if we have permanent stay-at-home, distancing, masking, and no sports, is that the right answer?
On a side note, a former VP of Pfizer (Dr. Michael Yeadon) just filed an emergency petition with the EMA asking for a halt to all SARS-CoV-2 vaccine trials in the EU, so nothing is a given . . .