People are obviously opposed to a bad manager assuming he can do your job better than you can. But I think DHH's point is to avoid the opposite extreme, small

People are obviously opposed to a bad manager assuming he can do your job better than you can. But I think DHH's point is to avoid the opposite extreme, small companies that over-hire into positions that an existing employee can easily perform. Having an existing person do "marketing" or "business development" probably won't be an awesome as an industry veteran doing it, but it beats hiring a full time person to do it without really understanding what that person does, and regretting it later.