All of them really. But mostly the owners, league office, and the networks. The NFL game has become homogenized. The uniforms must comply with league rules, everyone basically runs the same plays, the refs/league office control games, the broadcasts are vanilla, they pretend to care about cancer and veterans, etc. It's all just turned into a reality TV show with strict uniforms.
If I want to really watch football, I watch the college game. Which is headed the same direction but isn't there yet. I the only NFL games I watch are Saints games.