This seems the be the most logical reason for the King's departure. WWE have either offered him nothing creatively in recent times as he's slumped to the bottom of the League of Nations; or alternatively shot back anything he's offered to make himself more of a player in the company. The frustration of either scenario has boiled over to a point that Barrett sees himself having no future in WWE. It's a real shame. I suppose we can only wish him the very best in whatever he decides to do next...