Complex sentence: During 1991-1997, he was on the Mass Jobs Council, Massachusetts statewide workforce development board, and, for which he chaired the One-Stop Career Center Committee, which led the development of One-Stop Career Centers in Massachusetts.
Split into simpler sentences: During 1991-1997, he was on the Mass Jobs Council, Massachusetts statewide workforce development board. He chaired the One-Stop Career Center Committee, which led the development of One-Stop Career Centers in Massachusetts.