Here's an interesting excerpt from the article [emphasis mine]:
A recent study by the Compliance, Governance and Oversight Council found that fewer than 25 percent of organizations were able to dispose of data properly because they lacked rigorous legal hold management practices and effective record retention programs. The report also estimates that that costs associated with legal electronic discovery average more than $3 million per case and about 70 percent of information is often needlessly retained.I do not doubt that electronic discovery can cost, on average, $3 million. With painful manual collection and export to numerous review platforms/counsels the time and fees spend can be enormous. Moving e-discovery in-house is the only way to get a hold of these costs. See how at www.zlti.com.