Carolyn Rose Hunt

One of the early business trends for 1991 is a fast-revolving door. Major public officials so far this year are averaging 24.3 days from the time they leave office to the time they take a position on a corporate board. Former Gov. George Deukmejian took 25 days before joining the board of Santa Fe Pacific Corp. on Feb. 1. Former U.S. Secretary of Education Lauro F. Cavazos on Jan. 28 joined the board of Diamond Shamrock Inc., 47 days after he resigned. Former Federal Reserve Gov.