One of the co-founders is very big into "lean" and doesn't think any type of business plan should be written, while another co-founder believes at least some sort of light (or "lean") plan should be written. If that is the case, should the lean business plan be written as an internal compass for the founders or directed at early potential investors?
yes, but it should start small and grow iteratively.<p>First version can be very simple: This is what we do, here is how we will make money, here is how we are going to prove that this is a viable business.<p>Then run some experiments (aka get your mvp product into real people's hands as quick as possible) and do some learning, and add details/change things as time goes on.<p>Traction beats all.