The Forming Storming Norming Performing is a series of stages in a specific order to communicate to others to be more productive.
Tuckman's theory is focused on group developments where they uses these stages to communicate effectively.
Each of the stages are needed for the team to grow and become successful, otherwise if they miss out stages it might not work very smoothly. There could be more arguments or awkwardness if the skip some stages such as the forming stage as this is good because it gives the group a chance to get to know everybody.
The stages are so the team can grow, face challenges, tackle problems,