I think the idea isn't bad. There are people who want to mentor and people who are in need of mentors, makes sense.

However, I have two main questions:

Does having a person to talk to offer a compelling alternative to a blog post/book etc. that emphasizes the things you just mentioned: "brand that exudes quality, land speaking engagements, push to hit goals" etc. ?

The second question is: what about people who already do that? Will this be mainly geared towards entry level folks looking to go from mediocre jobs to good jobs? What do you have that would entice someone like me (happy with my current job, well paid, an online brand to some degree, does speaking/open source)? Perhaps I am not the target customer?