The NFL (in other words its teams) could lose up to $5.5 billion if 2020 games happen without fans.
And so if revenues are down the solution is simple: Reduce expenses. But with the salary cap set and contracts signed, it’s incredibly unlikely that the league and the union would agree to reduce the per-team spending limit.
There’s another way for teams to save money without a reduced cap. They can simply unload more non-guaranteed veteran salaries at some point before those salaries become as a practical matter guaranteed as of Week One of the regular season.