As of January 2016, given there is more work than I can take, I have stopped accepting projects, unless they are truly exceptional in nature (or come from someone I like and have worked with in the past).
I typically work with early stage or technology companies and take a leadership position in whatever project I do for them. My firm belief is to do whatever is required to get the job done; I do not believe in advice alone, but in my personal self-driven execution.
I take on a select number of companies; typically working on one or both of: