In STF delegation of tasks is essential to be a great DH. You have to be able to pass tasks onto your department to keep your officers busy. Your job is to make sure they have something to do as their jobs!
How do you delegate?
If you have orders from your CO or XO, a job to do in the sim or you are creating work for your staff, always break the job down into tasks. Assign one person to each task. If possible assign people to work together in teams to promote in character interaction.
Once you have your task in mind, assign it to the appropriate person. Be mindful of leaving someone who is inexperienced as a role-player without any support. Try to assign them in a team with a more experienced role-player to interact with. Always try to help players improve and settle, where appropriate. In the same way try to find out what their characters specialties are. It may be that one of your junior officers happens to be an expert in just that task, so find out more about their in character backgrounds. For example if one of your junior officers is a communications specialist and the task is about the communications systems then assign them! You can always assign someone to work with them too.
Delegating a task to a junior officer is down to giving the person the right orders.