The American Lawyer has an article recapping partner "arrivals" (read: lateral hires) and
"departures" (can you say, "Brobeck?") over more or less the past year,
and the results, while fodder for gossip, are not susceptible to rigorous
analysis since there is no distinction between firms with a determined
strategy of cherry-picking desirable laterals by one’s and by two’s
vs. firms that happened to complete significant merger or acquisition
last year.
In any event, here are the tables summarizing the arrivals and
the departures.