Modelling your teams is handy, but the ability to put people in operational control of a team is where the value really is. To add a team official to the team you're working with, click the Add a Team Official link on the right-hand side of screen.
A bit like building a committee, you'll be asked to choose somebody from the system and then to select their official role. If the person you're looking for is not in the list, then just type their name in and hit Done. The system will create a new user record on the fly, but ensure you fill in at least the email address field or this person won't be able to access the system.
As soon as you've done this, the new official can get themselves a password to the system and start logging in using the email address that is recorded against their user record. They won't see the Control Room (unless they're on the committee), but they do get full access to this team's unique Team Page. This gives them the tools to take control of the team and manage the week-to-week operations.
At this point, it's not uncommon for newly-appointed team officials to have a couple of issues accessing the system, and it's normally to do with the email address they're trying to use. For a list of common issues and resolutions, please visit: