John Riccitiello, CEO of Unity, the company whose 3D game engine had recently seen backlash from developers over proposed fee structures, will retire as CEO, president, and board chairman at the company, according to a press release issued late on a Monday afternoon, one many observe as a holiday.
That's not just CEOs. All employees after a certain point up the ladder have to "put in their resignation" if they are to be fired. It's a convention that saves face for both parties.