If we look at Habitat for Humanity, the idea would be to encourage, if not direct, that collaborative approach among organizations first, to find the right partner.
Through any funding model, you could hopefully encourage collaboration as a primary opportunity and ask those folks, whether there's funding at the front end or not, if they are able to create a collaborative that is going to save money and build faster. I think there are ways you can solve the demand and supply issue faster than we are today just by changing the funding requirements.