Or, what if there's not enough qualified women? Recruiting females CEOs just to say you've hired a female CEO seems like a bad way to run a business.

Now, I don't know if there is enough good female candidates or if there are enough women at the executive level waiting to move up but it would useful if stories like this actually examined that part of the picture instead of getting all worked up about 'diversity', that wonderfully inclusive phrase which has come to mean little. If you ain't on the 'diversity' bandwagon then you must be some kind of anachronism. 

As I see it now, fewer women in general seemed inclined to want to climb the corporate ladder hence there are fewer female CEO candidates hence there are fewer female CEOs. That's just my perception and I could be wrong, but if I'm correct then this drive for more female CEOs just for show seems very shortsighted.

It assumes women want to be just like men.