ORLANDO—Nurse Darlene Andrews stood before a small crew responsible for stopping the latest pandemic surge from overrunning seven of AdventHealth’s Orlando-area hospitals. She quickly listed occupancy at each hospital. Six were beyond full capacity, with one at 123% for adults. Nearby wall-mounted screens streaming hospital data showed more than 90 patients—some with Covid-19, some seeking other care—needed beds. One had been waiting more than two days. A hospital in Altamonte Springs, Fla., and another east of downtown Orlando were the current hot spots, nurse Andrew Stakelum told the group, a team that oversees work that has become critical for U.S....