Super User "Right-Sizing" Exercise

As many of you know, the Super Users play a tremendously important role during the implementation of SAP.

We have seen further value from the Super Users as they have been involved in new functionality expansion, upgrades, and enhancements. The also serve as our front-line troubleshooters.

I have been asked a theoretical question that I'm hoping some of you may have insight or ideas about. The question is "How do we know that we have the right number of Super Users?". This is being asked now that we have completed our globalization project and will soon complete a global upgrade.

Has anyone made significant changes to their Super User model post-implementation? If so, what did you base the decision on? How did you deliver the change? What worked well, and what didn't work so well?

Any help would be greatly appreciated,

Andrew