The missing part of the advice is that you need to hire the best _for your company_. But there isn't an objective definition of 'best.' People can be great at one job and not right for another, great in one company and not right for another. Hiring and job hunting is about fit.
I've worked with people who were A players, hired into a new firm, and quickly spun out. Other people were C players, found a new job, and quickly became A players.
If you're a company who's great at training people, you can hire for energy and eagerness to learn. If you expect people to know everything on day one, hire for experience. The same people who succeed in one of those companies will fail in the other. A big part of hiring is knowing yourself and knowing what makes people successful.
I've worked with people who were A players, hired into a new firm, and quickly spun out. Other people were C players, found a new job, and quickly became A players.
If you're a company who's great at training people, you can hire for energy and eagerness to learn. If you expect people to know everything on day one, hire for experience. The same people who succeed in one of those companies will fail in the other. A big part of hiring is knowing yourself and knowing what makes people successful.