The real risk is the players and coaches going home. You can control the players and coaches and ensure that they stay isolated, but you can't control their families and all the other people their families may come in contact with. If they really want to protect everyone, they need to isolate everyone for 2 weeks, test every day, and then put them all in a single hotel where no one leaves. It is the only way to ensure that they never come in contact with someone who has it.

The NFL would also need to isolate another 2 team roster of FAs so teams could make moves if needed. No one could join an NFL unless they were isolated and tested for 2 weeks.

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