The way the tweet is phrased makes me think he was asked by the board to choose, so I guess a more appropriate analogy would be: I'm employed by a company, I s

The way the tweet is phrased makes me think he was asked by the board to choose, so I guess a more appropriate analogy would be: I'm employed by a company, I start a side gig which I spend 50% of my productive time on, my boss eventually tells me that they need someone in my position to be a proper full time employee and I need to choose. I respond, "okay, in that case I resign". There's no difference between the two analogies in my eye, they're the same except that the first is about asking permission while the second is about just doing it.