The four psychiatrists we had were always there. However, psychiatrists are human beings too. They go on maternity leave, become ill, and so on. You can't always predict that there will be four full-time equivalents all the time.
I repeat, the issue has never been a lack of resources; rather, it was my inability to spend them because of the barriers beyond my control. There were the hiring practices. Every fiscal year, for example, there would be departmental directions announcing a hiring freeze because of the uncertain financial situation. There would be internal reviews. Those things all cause additional months of delay in offering positions to civilians who may be interested.