LOC,
do not give away all our tricks please!
Thanks
Anyway, from previous experience with the same system I can tell you that the only ways these systems work properly are:
1) There actually is a surplus of crew
2) With a rotating seniority system
None of these conditions are fullfilled in QR so expect to see the system crash, certainly for flightdeck, on the first run!
I guess the great P.M. is not that all-knowing after all. Or maybe he is, and he did this on purpose!