The NFL owners are used to one thing, and they do it very well: make money.
And not just with their respective teams. The majority of owners are billionaires for a reason. They are adept at what they do in the business world and have made their fortunes before they became involved in the ownership of their respective club.
One thing billionaires don’t like to do is lose money. On anything. Ever wondered why every major sports league has some sort of farm system as a feeder structure except the NFL?