Perhaps signaling his intention to tinker with Senate filibuster procedures on judicial nominees, Senate Majority Leader Bill Frist (R.-Tenn.) has installed experts on Senate rules as his top two staffers. In November, he named Eric Ueland, a master of parliamentary rules, as his chief of staff. This week, he announced that Sharon Soderstrom, a former assistant to Sen. Trent Lott (R.-Miss.), will fill Ueland's old post as deputy chief of staff. A statement from Frist's office praised Soderstrom as "an expert on Senate floor procedure."