There's a common approach advocated by many in the personal and professional development industries, namely that of "fake it it 'til you make it".
This runs something along the lines of "if you don't know what you're doing, learn just enough to sell what you'd like to do, i.e. just a little more than the person you're selling to. Then once you've sold it, errr, somehow figure out how to do it."
To all consultants-turned-consultancy owners, that is dirty. Selling can feel grubby to those of us who don't do it much. But the reality is that it's only grubby if you're selling stuff you have no idea how to deliver successfully (wannabe coaches and internet marketers take note).
Now I'll admit there is nuance here. Oftentimes, consultants are hired because they have the experience and/or brains to do things they, or their clients, haven't done before. They're hired because the combination of experience, brain-power and approach will help the client get to the destination, albeit occasionally taking hairpin bends faster than they feel comfortable.
Figuring it out on the basis of your relevant experience, your brains, and a methodology to get you there is one thing. Trying to figure it out on the basis of a couple of books or online courses, touting yourself as an expert, then hoping to finish the job without being found out, is in my books immoral. Which isn't to say that successful businesses haven't been started that way, but that's not my particular game, and isn't what Value/s Led Consulting is about.
Sadly, the consulting industry especially, much like the coaching industry, is rife with people selling stuff they have no experience or often even competence in, but with the chutzpah and greed to sell it anyway, especially to the unassuming. The low bar to creating a business here, much like "life coaching" or "internet marketing", means that many go down this route and either wilfully, or ignorantly, rip off clients along the way.
I'm not a fan. Especially as many excel in selling, which muddies the waters a lot for those who can actually deliver.