What things might occur to change the linear progression of a team development?

Team development can be disrupted by several factors, including interpersonal conflicts, changes in team leadership, or shifts in project goals. External pressures such as tight deadlines or organizational changes can also cause stress that affects team dynamics. Additionally, the introduction of new team members or a lack of resources may require teams to adapt and reevaluate their processes, leading to non-linear progression. These disruptions can either hinder progress or provide opportunities for growth and innovation.