One great take-down of this kind of thing.

Another point to consider is that there's more to people than just good or bad. Sure, some people just don't have the skills they need. But there are a lot of situations where someone can be great at one job and terrible at another depending on the fit.

The posturing about "the 1%", "A-players" and so-forth misses the idea that you want an optimal team, not magic people guaranteed to give you results.

Of course, to build an optimal team, you need a skilled organizer. So, for example, you can take someone who's otherwise low-skill, low-motivation and give them what they need to improve.