Wilson, who has an MBA from UC-Berkeley's Haas School, saw the promise of the opportunity, interviewed with board members in Los Angeles, New York, and Cleveland, and was eventually offered the job to become the second president and CEO of the organization. Now 72 years old, Wilson, recalls that the organization's total revenues in 1995 were about $14 million, of which $12.3 million went to ETS. "Even the guidebooks and budget was prepared by ETS and they managed our money, too," he says. "We would ask for a couple of hundred thousand every month to pay for payroll and our lease."

　　Wilson moved the organization to an office park in the Washington, D.C. suburbs of Virginia and set out a three-pillar strategy for growth: 1) To go global, 2) To embrace technology in all aspects of the business, and 3) To put GMAC on a solid financial footing. Back then, the organization had little more than 45 days of cash to run its business.

　　One powerful trend that Wilson had in his favor was the meteoric growth of the MBA degree. Some four decades ago, U.S. colleges graduated near equal numbers of lawyers and MBAs. Today, MBA grads outnumber J.D. grads by nearly four to one. And with many law schools struggling to fill classes, that ratio is likely to tip further in favor of the MBA. Outside the U.S., the growth in both business schools and the degree has exploded.

　　For the past 18 years, until Dec. 31, when Wilson retired as GMAC's top official, he had been the most visible cheerleader for the MBA degree. As he puts it, "What the MBA allows people to do is to build a foundation. You can use the degree to change your career or to accelerate your career."

　　Once in charge of GMAC, Wilson immediately applied his accounting skills to his biggest cost center, ETS. Among other things, he noticed that ETS was selling 140,000 copies of three guidebooks with the GMAC imprimatur. "I couldn't understand how you could sell that many copies each year and lose money," says Wilson. It was largely because two of the guidebooks -- on schools and financial aid -- were money losers, and in this pre-Amazon era, ETS was responding to fax requests to ship copies of the books. Wilson also put the organization's money management to bid and moved that task away from the testing contractor.

　　Despite the group's limited resources at the time, he also pushed forward to eliminate the rather limiting paper-and-pencil test and move to a computer exam that would adapt to each test taker's answers. The effort cost GMAC between $10 million and $12 million, but once GMAC was able to launch its new test in 1997, the organization could deliver the same exam everywhere, every day.

　　The single biggest contributor to the growth of the organization took place in 2003, when GMAC broke with ETS. Some 12 years later, Wilson vividly recalls the details of the rupture. On Nov. 11, 2001, he received a phone call from the CEO of the testing service. "He said they were closing six test sites in Europe and it wouldn't affect me," says Wilson. "On Dec. 7, the head of the program and the CFO would come and talk to me about it. When they came down, they said they were closing 116 sites. They weren't there to seek our input. They were there to advise us."

　　ETS' decision undermined Wilson's global ambitions. But his contract with the firm required him to give ETS two years notice if he wanted to fire them. The existing contract would end in just three weeks. So he went to ETS' Princeton, N.J., headquarters to negotiate a two-year extension so GMAC could, in his words, "learn a whole lot more."

　　Wilson put together a task force, hired Booz Allen to oversee the study project, and brought aboard 11 MBA interns to take apart every facet of what ETS actually did to administer the test and deliver the scores. Half way through the study, at the end of 2002, he created four study groups to examine together with ETS such issues as next-generation technology for the exam, global reach, test security, and customer service. "But the next generation group kicked it down the road like a tin can. They didn't want to change, and we had real issues."

　　What troubled Wilson more than any other issue was the security of the test. "Without a doubt, one of the most important things we do is provide schools with the assurance that the candidate who shows up on campus is the same candidate who took the test," says Wilson. In 2003, as GMAC's study of ETS and its procedures continued, the biggest scandal in the history of the GMAT erupted. A New York-based ring of five men and one woman were arrested for taking the test hundreds of times on behalf of other test takers in exchange for money. Federal and state investigators found that between January 2001 and July 2003, they sat for a total of 590 exams administered by ETS. A tip led investigators to the ringleader, Chinese-born Lu Xu, who was filmed on camera at a test center in Columbia, Md., not far from GMAC's headquarters in Tysons Corner, Va.

　　"He was testing as himself in this case, and he was trying to capture questions with a camera velcroed underneath the desk," recalls Wilson. "We got his hard drive and discovered that he and a cadre of proxy test takers would take the exam up and down the northeast," recalls Wilson. "He [Xu] took it 160-odd times, sometimes for a lady, when he wore a bad wig, and sometimes for a man. He took the test with a forged driver's license or a passport."