Managing teams should be about the long term. Any understanding this guy has of the long-term effects of his management style is necessarily second-hand. It's

Managing teams should be about the long term. Any understanding this guy has of the long-term effects of his management style is necessarily second-hand. It's not about age, but experience (and honestly representing yourself in the world). N.B. I'm not saying he shouldn't write, or that he doesn't have valuable insights to offer, just that the author's experience is fair ground for discussion.