One thing I'd like to see them do is radically simplify the ability for regular people to start regular businesses. One thing we could do is pick some small industry and run experiments with it. An example might be food trucks. There's a lot of regulations around these today. As a thought experiment we could eliminate all sales tax, special licensing, etc. for food truck companies under a certain size (We don't McDonalds food trucks to count). We could see what happened, is there wide spread food poisoning? Are families brought out of the lower class?

It doesn't have to be food trucks exactly, that's just an industry that people like in a business that's relatively simple and imo has low systemic risk.