Do you even have ownership of the project at this point? Don't all these others have a claim to it? Are you prepared to buy them out and/or completely start from scratch?
I do not have complete ownership, no. Co-founder has an equal stake as currently, but we have a prearranged agreement where I will be entitled to more equity upon our first financing. I don't really want to throw them out ... they are good at what they do (just not doing enough, in my opinion). I don't think it would be a problem to come to an agreement to redistribute equity.