According to Scrum.org, when splitting a large group into multiple Scrum Teams, it can be beneficial to allow the people to self-organize into smaller teams12. This approach respects the principle of self-organization, which is a key aspect of Scrum12. It allows individuals to choose the team they feel they can contribute to most effectively12. However, it's important to note that this process should be facilitated and guided to ensure a balanced distribution of skills and capabilities across the teams12.