Every judge who has ever struggled with discovery issues wishes that the lawyers involved had a better understanding of proportionality, that they had spent more time really thinking about how it applies to the requisites of their case. So too does every lawyer who, like me, specializes in electronic discovery. As Chief Justice Roberts explained in his 2015 Year-End Report on the Federal Judiciary on the new rules on proportionality:

The amended rule states, as a fundamental principle, that lawyers must size and shape their discovery requests to the requisites of a case. Specifically, the pretrial process must provide parties with efficient access to what is needed to prove a claim or defense, but eliminate unnecessary or wasteful discovery. The key here is careful and realistic assessment of actual need.

Proportionality and reasonableness arise from conscious efforts to realistically assess actual need. What is the right balance in a particular…