“We’re getting sloppy with the plating,” he told the pasta station. He was unhappy with how the fry cooks were slicing the avocado spring rolls. “Gentlemen, a half-inch border on this next time.” He tried to be a coach more than a policeman. “Is this three-quarters of an ounce of Parm-Romano?”

And that seemed to be the spirit in which the line cooks took him and the other managers. The managers had all risen through the ranks. This earned them a certain amount of respect. They in turn seemed respectful of the cooks’ skills and experience. Still, the oversight is tight, and this seemed crucial to the success of the enterprise.

The managers monitored the pace, too—scanning the screens for a station stacking up red flags, indicating orders past the target time, and deciding whether to give the cooks at the station a nudge or an extra pair of hands. They watched for waste—wasted food, wasted time, wasted effort. The formula was Business 101: Use the right amount of goods and labor to deliver what customers want and no more. Anything more is waste, and waste is lost profit.

I spoke to David Gordon, the company’s chief operating officer. He told me that the Cheesecake Factory has worked out a staff-to-customer ratio that keeps everyone busy but not so busy that there’s no slack in the system in the event of a sudden surge of customers. More difficult is the problem of wasted food. Although the company buys in bulk from regional suppliers, groceries are the biggest expense after labor, and the most unpredictable. Everything—the chicken, the beef, the lettuce, the eggs, and all the rest—has a shelf life. If a restaurant were to stock too much, it could end up throwing away hundreds of thousands of dollars’ worth of food. If a restaurant stocks too little, it will have to tell customers that their favorite dish is not available, and they may never come back. Groceries, Gordon said, can kill a restaurant.

The company’s target last year was at least 97.5-per-cent efficiency: the managers aimed at throwing away no more than 2.5 per cent of the groceries they bought, without running out. This seemed to me an absurd target. Achieving it would require knowing in advance almost exactly how many customers would be coming in and what they were going to want, then insuring that the cooks didn’t spill or toss or waste anything. Yet this is precisely what the organization has learned to do. The chain-restaurant industry has produced a field of computer analytics known as “guest forecasting.”

“We have forecasting models based on historical data—the trend of the past six weeks and also the trend of the previous year,” Gordon told me. “The predictability of the business has become astounding.” The company has even learned how to make adjustments for the weather or for scheduled events like playoff games that keep people at home.

A computer program known as Net Chef showed Luz that for this one restaurant food costs accounted for 28.73 per cent of expenses the previous week. It also showed exactly how many chicken breasts were ordered that week ($1,614 worth), the volume sold, the volume on hand, and how much of last week’s order had been wasted (three dollars’ worth). Chain production requires control, and they’d figured out how to achieve it on a mass scale.

As a doctor, I found such control alien—possibly from a hostile planet. We don’t have patient forecasting in my office, push-button waste monitoring, or such stringent, hour-by-hour oversight of the work we do, and we don’t want to. I asked Luz if he had ever thought about the contrast when he went to see a doctor. We were standing amid the bustle of the kitchen, and the look on his face shifted before he answered.

“I have,” he said. His mother was seventy-eight. She had early Alzheimer’s disease, and required a caretaker at home. Getting her adequate medical care was, he said, a constant battle.

Recently, she’d had a fall, apparently after fainting, and was taken to a local emergency room. The doctors ordered a series of tests and scans, and kept her overnight. They never figured out what the problem was. Luz understood that sometimes explanations prove elusive. But the clinicians didn’t seem to be following any coördinated plan of action. The emergency doctor told the family one plan, the admitting internist described another, and the consulting specialist a third. Thousands of dollars had been spent on tests, but nobody ever told Luz the results.

A nurse came at ten the next morning and said that his mother was being discharged. But his mother’s nurse was on break, and the discharge paperwork with her instructions and prescriptions hadn’t been done. So they waited. Then the next person they needed was at lunch. It was as if the clinicians were the customers, and the patients’ job was to serve them. “We didn’t get to go until 6 P.M., with a tired, disabled lady and a long drive home.” Even then she still had to be changed out of her hospital gown and dressed. Luz pressed the call button to ask for help. No answer. He went out to the ward desk.

The aide was on break, the secretary said. “Don’t you dress her yourself at home?” He explained that he didn’t, and made a fuss.

An aide was sent. She was short with him and rough in changing his mother’s clothes. “She was manhandling her,” Luz said. “I felt like, ‘Stop. I’m not one to complain. I respect what you do enormously. But if there were a video camera in here, you’d be on the evening news.’ I sent her out. I had to do everything myself. I’m stuffing my mom’s boob in her bra. It was unbelievable.”

His mother was given instructions to check with her doctor for the results of cultures taken during her stay, for a possible urinary-tract infection. But when Luz tried to follow up, he couldn’t get through to her doctor for days. “Doctors are busy,” he said. “I get it. But come on.” An office assistant finally told him that the results wouldn’t be ready for another week and that she was to see a neurologist. No explanations. No chance to ask questions.

The neurologist, after giving her a two-minute exam, suggested tests that had already been done and wrote a prescription that he admitted was of doubtful benefit. Luz’s family seemed to encounter this kind of disorganization, imprecision, and waste wherever his mother went for help.

“It is unbelievable to me that they would not manage this better,” Luz said. I asked him what he would do if he were the manager of a neurology unit or a cardiology clinic. “I don’t know anything about medicine,” he said. But when I pressed he thought for a moment, and said, “This is pretty obvious. I’m sure you already do it. But I’d study what the best people are doing, figure out how to standardize it, and then bring it to everyone to execute.”

This is not at all the normal way of doing things in medicine. (“You’re scaring me,” he said, when I told him.) But it’s exactly what the new health-care chains are now hoping to do on a mass scale. They want to create Cheesecake Factories for health care. The question is whether the medical counterparts to Mauricio at the broiler station—the clinicians in the operating rooms, in the medical offices, in the intensive-care units—will go along with the plan. Fixing a nice piece of steak is hardly of the same complexity as diagnosing the cause of an elderly patient’s loss of consciousness. Doctors and patients have not had a positive experience with outsiders second-guessing decisions. How will they feel about managers trying to tell them what the “best practices” are?