For corporate clients, there’s a potential silver lining in Big Law’s disarray. From 2007 through 2009, firms with more than 500 lawyers saw their billable hours decline by more than 5 percent. They unloaded associates by the thousands. While the billable-hours drought has eased with the economic recovery, companies increasingly are demanding better deals on rates, says Adam Epstein, a San Francisco-based board consultant for small-cap corporations. “The law firm brands don’t matter as much...