Massachusetts Gov. Deval Patrick swore in six new members to the Massachusetts Convention Center Authority board last week. He also thanked four departing members, including board chair Gloria Cordes Larson, for their service. Now heading up the board is Michelle A. Shell, a vice president at Strategic Advisers, a subsidiary of Fidelity Investments. The other five to join the board were Ann Conlon Roosevelt, an environmental advocate and owner of a Cambridge, Mass., real estate firm; Vanessa Otero, who owns a consulting firm in Chicopee, Mass.; David R. Giblin, general manager of the Boston Marriott Copley Place; Massachusetts Lodging Association president and CEO Paul J. Sacco; and Mark Erlich, executive secretary-treasurer of the New England Regional Council of Carpenters.