Are you saying 18,000 faculty? UM undergrad has 12,000 students ... student to teacher ratio is 12:1. That would give you 1,000 faculty ... professors. Certainly there ARE additional staff members but no way are there 18,000 professors.
That $30 M figure is misleading. That was reportedly the figure of what that class was offered over the 4 year period that they would attend A&M. Not a $30 M payment in one season.