you should be able to direct workgroup assignment, status, & upda.

[m0r0c0]

You should add a field to the resources for the manager, or allow an e-mail
address to be associated with the resource group so that workgroup status
update requests can be directed to managers instead of individual
contributors.

 

[Steve House [MS Project MVP]]

You could fudge it and use the manager's email address in the individual
resource definition...