Furia,
According your hyphotesis:
1 After start checklist was properly performed. Therefore:
i) Flap/slats were selected according TO performance calculation
ii) Slat secuence was checked as: disgree/TO/disagree-auto/disagree/TO
iii) Flap position indicator was checked to agree with selected flaps (both)
iv) Slats T/O light was checked to be ON and all other slat advisory lights
to be OFF.
v) Auto slat fail caution light on annunciator panel was checked as off.
2) Take off briefing during taxi was performed and flapp setting was checked.
3) Take off inminent C/L was properly performed and so:
Flap/slat position was verify( needles + light) during final/killer items check
Even though procedures comply 100% with SOPs, in FACT flap/slats were not deployed.
This scenario being true, I guess no MD pilot all over the world might trust this machine and the MD fleet should be grounded inmediately.