Quality/Expertise multipliers just threw my campaign for an eight hour loop today, as we discovered a few costs off-kilter (having five doctors and no medics in a Medical team makes for a lot of cost! oops!) and went to rectify them. During the reverse-engineering process and attempting to backwalk what books were used to determine them, we discovered there were two different Expertise charts with vastly different multipliers for salary...
What supercedes what? Characters run a group, but are billing their client for themselves as their appropriate specialty(s) and the gross mismatch in these numbers is chaotic.