Can Executives Job Share?

Can Executives Job Share? is an interesting case of two executives sharing a top job. I am not very optimistic about this being popularized in the industry. I think it is a great achievement for these two executives (certainly being women helps in that they are probably more empathic and have less ego issues) to be able to do what they have done. But replicating it as a commonly ocurring phenomenon will be quite difficult. Definitely it is a novel way to improve professional-personal life balance.