PROFIS
The PROFIS or Professional Filler System is used by the United States Military to fill voids in personnel when a unit deploys on a combat or humanitarian mission. Due to the high financial cost of employing physicians, civil engineers, lawyers or other "high dollar specialists" in a military unit, usually at the battalion and sometimes at the brigade level a full time "specialist" is not permanently assigned to these units. When a unit deploys to an austere location, the demand for a specialist increases. The military's solution is to have a PROFIS or assigned specialist to these units that only serves with the unit when they deploy.