In Share, I can see all tasks assigned to the user, or unassigned or started by the user. But where can a manager see the full picture of what tasks lies with whom, or how many tasks is outstanding per user, or see which tasks is over due across the bord?
I've looked and looked but does not find anything.
This is not available out-of-the-box. If you want to have this implemented in alfresco share then here is one probable approach you can probably go ahead with. You can develop a custom dashlet and get all the running workflows in that dashlet. You can take a look at WorkflowService. Using queryTasks method, you should be able to fetch the workflows building the required query.