Crescent Credit Union, Brockton, Mass., announced that after eight years as chairman of the credit union's board of directors, Herbert S. Nagle is passing the gavel to newly elected Chairman William Rosa. Nagle will continue to serve as a director, a position he has held since 1959. Rosa joined the board in 2002. He has served as vice chairman since 2007. Rosa is a graduate of Rutgers University and holds a degree from the New England School of Law. A partner at the law firm of Wynn & Wynn P.C. in Raynham, Mass., he is also a member of the Taunton Bar Association and the Rhode Island Bar Association.