Southwest founder Herb Kelleher comes out of retirement to take the reins at GM. Lee Scott leaves Wal*Mart soon to run Ford for five years. (If Lee won't do it, we'll bring his predecessor, David Glass, out of retirement.) Mickey Drexler makes the switch from J.Crew to Chrysler. All of them know retail! All of them know the mid- to low-end mass market! All of them know that pennies matter! All three are the salt of the earth!