It is not simply a given as the authors say. For the 2 million strong federal workforce what kinds of experts should be supported? What level of staffing is appropriate with what experts, liming it to the most useful and productive is desirable so that the funds can be diverted to use in better places or returned to the taxpayer. Budgeting based on justifying cost every year starting from zero and building it up for essential tasks is important to avoid waste in spending.