Admiral Rickover was criticized for hiring and qualifying veterans as engineers without degrees. He called us his evil-necessities. After he retired and DoN was made to hire engineering graduates, the program dwindled and failed. I vetted résumés, the least bad of which were inflated, the worst were outright fabrications. A brilliant graduate engineer had a 'nervous breakdown' when faced with her final exam at GD Electric Boat, all written, academic and theory, nothing practical, not an oral board-examination.
Rickover defended his decisions before Congress in brilliant arguments for management from the shop-floor.