The GRPI model of team development is a framework for team building. It is a systematic process that helps teams to be more effective in the workplace. The GRPI model of team development was developed by David Rock and it has been widely used in the corporate world. The framework consists of three stages - gathering, planning, and executing. The first stage involves creating a shared vision for the team; the second stage involves defining goals and objectives; and the third stage involves executing on these plans.