Former NJT Executive Director Richard Sarles has been named as the interim head of the Washington Metropolitan Area Transit Authority (WMATA, otherwise known as "Metro").  He begins his new job on April 1st.  He takes over the system in the wake of a serious accident last year and financial challenges, which many transit authorities face.  Sarles left NJT at the end of January, when he was replaced by Christie appointee James Weinstein.