I have written about benchmarks that the current crop of surveys do not gather. Our industry is missing a number of metrics that could be useful (See my post of May 30, 2005: judgments and settlements; Jan. 19,2008: metrics differentiating privately-held companies; March 24, 2005: productivity; and July 20, 2005: practice areas.).
Not content with fragments distributed across multiple posts, I wrote an article about elusive metrics that would help managers of law departments. Click here for my article in PDF format on the lacunae of benchmark metrics.