First and foremost, a proposal is required to get executive buy-in for a new project, program, or service at your organization. Secondly, it is used to get everyone on the team thinking about the same goals and priorities. Lastly, it serves as as way for the organization to know when they need to make new hiring decisions or budget adjustments. Successful organizations get granular with their project proposals and engage in project planning before seeking out budget or executive buy-in.