As SharePoint 2010 (version 4) is close to hitting a release date, I think its safe to assume that SharePoint is now a mature server product. However, more often than not, companies are still failing to properly staff their departments to support and leverage their SharePoint farm.
Bill English recently conducted a survey to see how companies are staffing their SharePoint teams. There’s some really great info in there. If you are struggling with what headcount or the skill sets you need in your company from a FTE perspective, you may find some indicators of what others are doing with their SharePoint teams.