What a horribly written article! I couldn't tell the reason why the doctors resigned. There are too many jargon terms in there that I don't recognize. I had to ask ChatGPT the explain it to me. Here it is in plain language:

Five doctors at St. Clare’s Mercy Hospital resigned because they say their workplace has become too unsafe to keep doing their jobs. The tipping point came when the hospital pulled out resident doctors — junior physicians who usually handle much of the day-to-day patient care under supervision. That left just five senior doctors to care for around 100 patients, handle up to 20 emergency cases a day, and respond to life-or-death situations like cardiac arrests — all without enough help. But this wasn’t an isolated problem. The doctors say they’ve been raising concerns for months, and that the health authority has ignored them and failed to offer any real plan to fix things. They’re warning that without action, patients will be at serious risk and staff will burn out. Their resignation is a last resort — a way to force the system to face a growing crisis that’s been building for far too long.