Metropolitan Life Insurance today said it will establish a new group serving the companys defined contribution, pension and stable-value clients. MetLife Institutional Retirement & Savings group is a realignment of MetLifes record keeping, product development, distribution and marketing for its retirement and pensions area. According to a company spokeswoman, existing clients wont experience any upheaval and in the long run should benefit from better resources. Gary Lineberry, senior vice president of the defined contribution area, has elected to pursue other opportunities after the formation of the new group is complete, the spokeswoman said. While Mr. Lineberry wont be replaced directly, David A. Levene, executive vice president, will lead the new retirement and savings group.