On the Summits, i can see the options to put some prisoners to higher position as servants, warden and manager improve the mood of the other. And i did, as 8 beautiful angels were put in service to make life better <(￣︶￣)> However, when i want to fill out the position of manager and warden, i am unable to do so, whenever i choose a girl to work, it says "Can't sign as manager/warden". What can i do to change this ?