no, there are two sort of people who can author outcome atm: the motion author OR group coordinator:
```ruby
    can [:destroy,
         :close,
         :create_outcome,
         :update_outcome,
         :edit_close_date], Motion do |motion|
      (motion.author == user) or @admin_group_ids.include?(motion.group.id)
    end
```

were you suggesting the motion should have an outcome_author column/ association