[rt-users] Remove right to reassign ticket?

[jennyw]

Is there a way to remove the right to assign tickets to others but still 
allow privileged users to update and own tickets? I didn't see a way to 
do this.  If not, is there a good work around?

The issue is that we don't want people to be assigned a ticket and to be
able to reassign it to someone else (that would be up to the manager or
lead).

Thanks!

Jen