Most plan sponsors can relate to the trials and tribulations of having missing participants in their retirement plan. At times, it may feel like you are on the losing end of an intense game of hide-and-seek. Your opponents, the missing participants, may not have intended to pick the best hiding spots, but in many cases, they have surely succeeded. Now you are tasked with tracking them down and upping your game to avoid this scenario in the future.So, what are missing participants, exactly? ...