Larry David is one of my favorite people because he created two of the greatest shows in television history: “Seinfeld” and “Curb Your Enthusiasm.” The shows are similar in that they depict bad ideas or bad behaviors. Curb Your Enthusiasm showcases the things that drive Larry David nuts. Plan sponsors do a lot of bad things, and this article is really about things that 401(k) plan sponsors shouldn’t do because they’re really bad ideas. If plan sponsors proceed with bad ideas and do bad things, there won’t be any soup for them.