I agree with this. If someone has put in the work to become good at programming, and perhaps has some innate intelligence required to become good at programming

I agree with this. If someone has put in the work to become good at programming, and perhaps has some innate intelligence required to become good at programming, then I think it's reasonable to assume that they might be able to put in the work to become a great manager, and perhaps have some innate intelligence required to be a great manager. Certainly many programmers here are saying that they only program because they love it, and they wouldn't give it up to go into management. Great, but that in no way proves that there aren't some or perhaps many programmers who would like to make a transition to management.