Look for Attorney General Janet Reno to stick more closely to the Administration's anticrime line. Reno, who had little role in shaping the crime bill pending in Congress, irritated the White House recently by pushing her liberal approach to the "root causes" of crime while the President was espousing a crackdown. Now, Clinton aides say, Reno will coordinate her positions with the White House--and will work for the President's crime-bill priorities, including mandatory life sentences for felons who commit violent crimes three times. Meanwhile, insiders at Justice say the search for a Deputy Attorney General to replace Philip B. Heymann, who resigned on Jan. 27, has narrowed to Washington lawyer Charles F.C. Ruff, Manhattan U.S. Attorney Mary Jo White, and Pentagon General Counsel Jamie S. Gorelick.