What effect can adding a second Scrum Team have on the original team's velocity?

When a second Scrum Team is added to a project, it's important to consider how this change may impact the dynamics and performance of the original team. One possible outcome is a drop in the original team's velocity. This can occur due to several factors.

Firstly, the addition of a new team can lead to increased complexity in communication and coordination among teams, especially if they are working on overlapping areas or shared goals. This added complexity can disrupt the flow of work for the original team, leading to inefficiencies and potentially causing their sprint velocity to decrease.

Additionally, if both teams share the same Product Backlog, the presence of another team may create competition for resources, attention, and prioritization. The original team might find themselves distracted by the need to align with the new team, which can pull focus from their individual work and thus reduce their productivity and velocity.

Moreover, teams may need to invest time to establish a collaborative working relationship, which can temporarily detract from their output while they adapt to new ways of working together. In Scrum, velocity is a measure of how much work a team can complete in a sprint, and any disruption to team dynamics can affect their ability to deliver as they did prior to the change.

Overall, the likely result of adding