Jennifer Evans needs the 'Administer Projects' permission to manage project role membership and the 'Work on Issues' permission to log time to issues. According to the permission scheme, the 'Administer Projects' permission is granted to the 'Administrators' role, and the 'Work on Issues' permission is granted to the 'Users' role. Therefore, she needs a minimum of two project roles: 'Administrators' and 'Users'.

Teresa's inability to see the Approve transition could be due to two main reasons: she might not be in the correct group or project role, or she might not meet the condition set on the Approve transition. These factors would affect her visibility of specific transitions while allowing her to still see others like Start Progress.

As a project administrator in Jira, you can manage users and their permissions within a project. Therefore, you can handle assigning Sam Smith the same permissions as Dwayne Johnson. Additionally, you can manage who has the ability to bulk-edit issues by configuring the project's permissions scheme to restrict this action to QA managers. On the other hand, changing priority values, setting up notifications, and modifying issue security levels typically require Jira administrator rights.