I once had a job working in the building materials department of a Home Depot. I was an average employee: I was usually on time to work, I helped people load drywall into their trucks and I kept my assigned area fairly clean and tidy.
My one true weakness was driving the forklift though. I could keep it in a straight line and I could do doughnuts but what I hard a hell of a time doing was operating the actual forks with any real precision.
I routinely punctured bags of cement when attempting to bring down a pallet of it from the overhead beams.
Sometimes I would splinter the wood of the pallet so that when I finally had the product on the forks there were loose limbs of wood dangling in several different directions. I wasn't good.
The point I'm making is this: some people just aren't cut out for certain jobs. The men on this list all share that same distinction. None of these NFL owners should have a hand in the day to day running of their respective franchises.
Don't misunderstand, owning a team is one thing but there is a reason other clubs have presidents, general managers, etc., because maybe sometimes an owner should bring in experts and just sign the paychecks.