ECEF’s producer Sam Lippman says content is evolving, and opinions are changing. What’s that you say? You did not attend this year’s Exhibition and Convention Executives Forum (ECEF) in Washington, D.C. If you now expect I will review all that you missed, relax. We all know that describing a live event will always fall far short of attending. By the time you read this, Lippman Connects will have posted online videos of every presentation, the...