Please consider adding "Add to lineup" and "Remove from lineup" as automation actions. For the lineup option, allow "All", specific people, teams, watchers, assignees.
As in:
"When Status Changes to [Complete, Ready for Review, Stalled]" -> "Remove from lineup [sb, ct, jw]"
"When Due Date arrives" -> "Add to lineup [assignees]"
"When Status Changes to [Stalled] -> "Add to lineup [Managers]"
Great addition would also