IT Power User Roles/Duties

Hi All! 

I'm hoping to pick all your brains! 

I have a new IT team member, and we are looking to have him be in a Power User role. 

Our database is hosted via RAMP, and I currently serve as the system administrator.  We have Power users representing all the main departments (Ticketing, Development, Production/Artistic and Marketing.) 

I'm looking to see if anyone has any ideas or job duties that they could share with me that show what their IT people do for Tessitura or in the Power User role. 

Thank you so much!!