another table?

Description

Number in the grouping headlines wouldn't hurt.

But why not add a second list under the project's effort-list:
  • EffortList
  • EffortSummary on TeamMembers:
    • Person, Role, Sum of efforts (hours?), Graph compared to other team members
  • since there might come more pages and tables like this one, (project performance, efforts on tasks, etc) we could add a Linkbox on the right side (similar like the Functions-Box in Home).