Law department management practices have evolved over the past two decades (See my post of Feb. 4, 2006 on the shift in reliance from external corporate lawyers to litigators.). Evolution, by which I mean the process over time of variation (mutation), selection and replication, has performed its magic on corporate legal functions (See my post of Jan. 3, 2006 about evolution and fairness detection.).
Sound practices, such as evaluations of performance and matter management software, emerge and thrive and spread. Good ideas reproduce in a Darwinian world of management capabilities (See my post of Feb. 16, 2006 on organizational DNA according to Booze Allen; and May 1, 2005 on evolutionary computing to solve problems.). Hard-earned experience by many law departments over time winnows out ineffectual ideas struggle before they eventually go extinct.