My question is:

What is keeping the company manning the 767 less than proportional to 767 SCH? They will be able to short man the airframe and pay a monthy "tax" which, by my estimation, would be a small price to pay. They would be able to overload the 757 seats where pay for vacation, sick leave, B-plan funding, etc. is paid at the lesser Narrowbody rate instead of the higher widebody rate and potentially for a greater number of crew members.

Am I missing something?