That might work for cookie-cutter, by-the-book managers later but it won't work for a founder, or anyone developing anything new.

I've hired construction crews before knowing about the area, and again after working in it myself. It's a night and day difference. And not because they specifically lied or even stretched the truth but because they didn't tell me what I really needed to know to make good decisions.

If all you want is "a blog" then you may be happy with what you get without more thought but if you want anything more complex than that you're going to need to understand significantly more about what you really want and how the constraints are going to impact it.