Hi all, any references (books, sites, and such) about how to start an Accelerator program?

Our small company is in the business of outsourcing developers. Some pain points that our devs experience is the scope creep from founders who are unclear with their product and market. So our plan is to build an Accelerator program to help clients clarify their business, in terms of market, product, process, and team. So before they hire a developer, we can be sure that we have helped them understand their business.