To be clear about staffing, it's not just about finding qualified workers, it's also about 1) reviewing applicants, 2) scheduling for interviews, 3) interviewing, 4) submitting offer, getting candidates to sign offer and consent forms, 5) going through background process, 6) orientation and new hire training, 7) training for the position they're in, 8) getting that employee to keep showing up and not quit.
Just something to keep in mind when you hear discussion on companies having staffing issues. There could be several bottle necks, not just whether they have enough applicants. I assume UOR might actually have enough applicants but several other things are going wrong. They likely don't have enough HR (talent acquisition/recruiters) and trainers.