With every iteration of this identification process being executed, this factor becomes more and more important. There could be teams that are differentiated on various grounds, such as their technical skill set, geographical location, or security requirements (employees versus outsourced).
If there is a part of the functionality that requires a specific skill set, then you could be looking at another probable Seam candidate. Teams can be composed of varying degrees of these differentiation factors. As part of the transition to microservices, the clear differentiation that could enable them to work independently could further optimize their productivity.
This can also provide a benefit in the form of safeguarding the intellectual property of the company—outsourcing to consultants for specific parts of the application is not uncommon. The capability to allow consultants or partners to help you only on a specific module makes the process simpler and more secure.