 For the first time in about 100 years, the Jewish state is without an occupant of one of its most important offices. David Lau and Yitzhak Yosef, who are both serving jointly, have ended their 10-year terms, and there's no agreement on who is going to replace them. The office of chief rabbi has become a point of contention in Israel, and the 150-member council of rabbis and public officials that have to select a replacement just can't seem to agree on the next one.