Daniel's whiskey. MassMutual maintained internal development as the postwar economy boomed by decentralizing operations through field agents. The company's home office staff, consisting of 1,350 employees, served a client base of more than 700,000 customers. MassMutual's general and district agencies contributed towards the company's growth – assets totaled $1.4 billion, with $3 billion of insurance in force by 1951. In addition, MassMutual instituted a training program for field agents and encouraged its workers to complete the American College Chartered Life Underwriter designation. Total life insurance in force doubled from $2.7 billion to $5.4 billion between 1948 and 1957. Development approaching and through the 1970s James R. Martin was named president in 1968. Martin led MassMutual to invest in various projects, including $75 million invested in a Springfield, Mass. office to support efforts for rejuvenating urban development in Springfield. MassMutual began to offer flextime for employees in 1968. While MassMutual focused on life insurance, policyowners began to invest money into money market funds. MassMutual responded by forming its own money market in the late 1970s. MassMutual reorganizes: 1980s to 1990s William Clark, who had taken over as MassMutual's president in 1980, reorganized the company changing investment policies and introducing several new products – including universal life policies in 1981. MML Investors Services was founded in 1981, offering mutual funds and other non-insurance products. MassMutual then reorganized in 1983 into four divisions: individual products, group life and health, group pensions, and investments. Group pensions became particularly important in the 1980s after the federal legislation began to oversee employee pensions as the Employee Retirement Income Security Act was passed in September 1974. In addition to universal life policies being introduced in 1981, MassMutual's group pension unit was upgraded to a division the same year. By early 1984, the US economy rebounded and the country entered one of the longest periods of sustained economic growth since World War II. The group pension division's assets had reached $5 billion – making MassMutual one of the biggest managers in the United States. The investment management group issued $693 million in commercial mortgage pass-through certificates in 1985 – the largest commercial loan issue to date. Assets stood at $15.7 billion and rose to $25.1 billion by 1989. Individual life insurance in force was $81.5 billion in 1989 – up from $54.1 billion in 1985. Despite the huge growth of the group pension and financial products divisions, MassMutual