Being smart is useful, but if you don’t have the ability or propensity to teach what you know it may be not benefit the whole team and organisation as much. Here’s a precis. Worth a read if you are recruiting or promoting.
And on another note, this article on the importance of CEO contribution to society and stance on social issues – a big shift during the Covid-10 pandemic. If you are leading you need to take that seriously. Being smart and good at your job will not cut it.