Law.com has a good article today about e-discovery.  It is written by Craig Ball and entitled "Ten Blunders That Stop E-Discovery Cold." 

Read the article, but here are some of the blunders: 

• You commit to EDD efforts without understanding a client's systems or data.
• You think you can just "print it out."
•  You ignore preservation obligations until the motion to compell
• You fail to share sufficient information or build trust with the other side.
• You let fear displace reason.
  

Perhaps the most important blunder is No. 10:   "You kid yourself that we don't need to learn this stuff.."