What is the likely immediate impact on the productivity of the original Scrum Team when two additional teams are added to product development?

When additional teams are introduced to the product development process, the productivity of the original Scrum Team is likely to decrease due to several factors. Firstly, communication overhead typically increases as the number of teams grows. With more teams involved, coordination efforts become more complex, which can lead to misunderstandings, misalignment of goals, and increased time spent in meetings to ensure all teams are synchronized.

Additionally, the need for integration becomes more pronounced as multiple teams work on interrelated components. This can create bottlenecks and dependencies, where the original team must wait on the progress of other teams to complete their tasks.

Moreover, the original team may need to adapt to new ways of working and establish new communication channels, which can temporarily disrupt their workflow and diminish their initial productivity.

In the context of Scrum, maintaining a cohesive and autonomous team is crucial for optimal performance. Therefore, while scaling can lead to greater output in the long term, the immediate effect often results in a productivity dip for the original team as they adjust to the changes.