The Mormon Tabernacle Choir will be under a new baton, now that its leader of more than a decade has decided to resign. Craig Jessop said he is “at a major crossroads of life” and decided to move on, the Church of Jesus Christ of Latter-day Saints announced Tuesday. He was appointed music director and conductor in December 1999. During his tenure, the choir received the National Medal of Arts from President George W. Bush, was inducted into the National Association of Broadcasters’ Hall of Fame and participated in the 2002 Olympic Winter Games in Salt Lake City. Associate music director Mack Wilberg will be the interim director of the choir.